Merge branch 'master' of github.com:grpc/grpc into cq_alarm

commit: 5f9e979e8c73c38791e109be9bc02c41fc45f453 [log] [tgz]
author: David Garcia Quintas <dgq@google.com> Tue Oct 13 15:26:33 2015 -0700
committer: David Garcia Quintas <dgq@google.com> Tue Oct 13 15:26:33 2015 -0700
tree: 0649bd2f3a999ac18678dfcaf3d77124be35a9c4
parent: af6f3ac555402f74ef36526844218d5fae8560a5 [diff]
parent: bee8f104c0827bc829402d79c8302835adfc37f9 [diff]
diff --git a/.gitignore b/.gitignore
index 18b4281..bfbc393 100644
--- a/.gitignore
+++ b/.gitignore

@@ -37,10 +37,11 @@
 
 # Temporary test reports
 report.xml
+latency_trace.txt
 
 # port server log
 portlog.txt
 
 # gyp generated make files
 *-gyp.mk
-out
\ No newline at end of file
+out

diff --git a/BUILD b/BUILD
index 3e1305a..262b2c6 100644
--- a/BUILD
+++ b/BUILD

@@ -44,6 +44,7 @@
 cc_library(
   name = "gpr",
   srcs = [
+    "src/core/profiling/timers.h",
     "src/core/support/block_annotate.h",
     "src/core/support/env.h",
     "src/core/support/file.h",
@@ -53,6 +54,8 @@
     "src/core/support/string_win32.h",
     "src/core/support/thd_internal.h",
     "src/core/support/time_precise.h",
+    "src/core/profiling/basic_timers.c",
+    "src/core/profiling/stap_timers.c",
     "src/core/support/alloc.c",
     "src/core/support/cmdline.c",
     "src/core/support/cpu_iphone.c",
@@ -88,6 +91,7 @@
     "src/core/support/thd_win32.c",
     "src/core/support/time.c",
     "src/core/support/time_posix.c",
+    "src/core/support/time_precise.c",
     "src/core/support/time_win32.c",
     "src/core/support/tls_pthread.c",
   ],
@@ -177,6 +181,9 @@
     "src/core/httpcli/format_request.h",
     "src/core/httpcli/httpcli.h",
     "src/core/httpcli/parser.h",
+    "src/core/iomgr/alarm.h",
+    "src/core/iomgr/alarm_heap.h",
+    "src/core/iomgr/alarm_internal.h",
     "src/core/iomgr/closure.h",
     "src/core/iomgr/endpoint.h",
     "src/core/iomgr/endpoint_pair.h",
@@ -204,9 +211,6 @@
     "src/core/iomgr/tcp_server.h",
     "src/core/iomgr/tcp_windows.h",
     "src/core/iomgr/time_averaged_stats.h",
-    "src/core/iomgr/timer.h",
-    "src/core/iomgr/timer_heap.h",
-    "src/core/iomgr/timer_internal.h",
     "src/core/iomgr/udp_server.h",
     "src/core/iomgr/wakeup_fd_pipe.h",
     "src/core/iomgr/wakeup_fd_posix.h",
@@ -217,7 +221,6 @@
     "src/core/json/json_common.h",
     "src/core/json/json_reader.h",
     "src/core/json/json_writer.h",
-    "src/core/profiling/timers.h",
     "src/core/statistics/census_interface.h",
     "src/core/statistics/census_rpc_stats.h",
     "src/core/surface/api_trace.h",
@@ -313,6 +316,8 @@
     "src/core/httpcli/format_request.c",
     "src/core/httpcli/httpcli.c",
     "src/core/httpcli/parser.c",
+    "src/core/iomgr/alarm.c",
+    "src/core/iomgr/alarm_heap.c",
     "src/core/iomgr/closure.c",
     "src/core/iomgr/endpoint.c",
     "src/core/iomgr/endpoint_pair_posix.c",
@@ -343,8 +348,6 @@
     "src/core/iomgr/tcp_server_windows.c",
     "src/core/iomgr/tcp_windows.c",
     "src/core/iomgr/time_averaged_stats.c",
-    "src/core/iomgr/timer.c",
-    "src/core/iomgr/timer_heap.c",
     "src/core/iomgr/udp_server.c",
     "src/core/iomgr/wakeup_fd_eventfd.c",
     "src/core/iomgr/wakeup_fd_nospecial.c",
@@ -356,9 +359,6 @@
     "src/core/json/json_reader.c",
     "src/core/json/json_string.c",
     "src/core/json/json_writer.c",
-    "src/core/profiling/basic_timers.c",
-    "src/core/profiling/stap_timers.c",
-    "src/core/surface/alarm.c",
     "src/core/surface/api_trace.c",
     "src/core/surface/byte_buffer.c",
     "src/core/surface/byte_buffer_queue.c",
@@ -465,6 +465,9 @@
     "src/core/httpcli/format_request.h",
     "src/core/httpcli/httpcli.h",
     "src/core/httpcli/parser.h",
+    "src/core/iomgr/alarm.h",
+    "src/core/iomgr/alarm_heap.h",
+    "src/core/iomgr/alarm_internal.h",
     "src/core/iomgr/closure.h",
     "src/core/iomgr/endpoint.h",
     "src/core/iomgr/endpoint_pair.h",
@@ -492,9 +495,6 @@
     "src/core/iomgr/tcp_server.h",
     "src/core/iomgr/tcp_windows.h",
     "src/core/iomgr/time_averaged_stats.h",
-    "src/core/iomgr/timer.h",
-    "src/core/iomgr/timer_heap.h",
-    "src/core/iomgr/timer_internal.h",
     "src/core/iomgr/udp_server.h",
     "src/core/iomgr/wakeup_fd_pipe.h",
     "src/core/iomgr/wakeup_fd_posix.h",
@@ -505,7 +505,6 @@
     "src/core/json/json_common.h",
     "src/core/json/json_reader.h",
     "src/core/json/json_writer.h",
-    "src/core/profiling/timers.h",
     "src/core/statistics/census_interface.h",
     "src/core/statistics/census_rpc_stats.h",
     "src/core/surface/api_trace.h",
@@ -581,6 +580,8 @@
     "src/core/httpcli/format_request.c",
     "src/core/httpcli/httpcli.c",
     "src/core/httpcli/parser.c",
+    "src/core/iomgr/alarm.c",
+    "src/core/iomgr/alarm_heap.c",
     "src/core/iomgr/closure.c",
     "src/core/iomgr/endpoint.c",
     "src/core/iomgr/endpoint_pair_posix.c",
@@ -611,8 +612,6 @@
     "src/core/iomgr/tcp_server_windows.c",
     "src/core/iomgr/tcp_windows.c",
     "src/core/iomgr/time_averaged_stats.c",
-    "src/core/iomgr/timer.c",
-    "src/core/iomgr/timer_heap.c",
     "src/core/iomgr/udp_server.c",
     "src/core/iomgr/wakeup_fd_eventfd.c",
     "src/core/iomgr/wakeup_fd_nospecial.c",
@@ -624,9 +623,6 @@
     "src/core/json/json_reader.c",
     "src/core/json/json_string.c",
     "src/core/json/json_writer.c",
-    "src/core/profiling/basic_timers.c",
-    "src/core/profiling/stap_timers.c",
-    "src/core/surface/alarm.c",
     "src/core/surface/api_trace.c",
     "src/core/surface/byte_buffer.c",
     "src/core/surface/byte_buffer_queue.c",
@@ -740,7 +736,6 @@
     "src/cpp/client/credentials.cc",
     "src/cpp/client/generic_stub.cc",
     "src/cpp/client/insecure_credentials.cc",
-    "src/cpp/common/alarm.cc",
     "src/cpp/common/call.cc",
     "src/cpp/common/completion_queue.cc",
     "src/cpp/common/rpc_method.cc",
@@ -761,7 +756,6 @@
     "src/cpp/util/time.cc",
   ],
   hdrs = [
-    "include/grpc++/alarm.h",
     "include/grpc++/channel.h",
     "include/grpc++/client_context.h",
     "include/grpc++/completion_queue.h",
@@ -834,7 +828,6 @@
     "src/cpp/client/credentials.cc",
     "src/cpp/client/generic_stub.cc",
     "src/cpp/client/insecure_credentials.cc",
-    "src/cpp/common/alarm.cc",
     "src/cpp/common/call.cc",
     "src/cpp/common/completion_queue.cc",
     "src/cpp/common/rpc_method.cc",
@@ -855,7 +848,6 @@
     "src/cpp/util/time.cc",
   ],
   hdrs = [
-    "include/grpc++/alarm.h",
     "include/grpc++/channel.h",
     "include/grpc++/client_context.h",
     "include/grpc++/completion_queue.h",
@@ -968,6 +960,8 @@
 objc_library(
   name = "gpr_objc",
   srcs = [
+    "src/core/profiling/basic_timers.c",
+    "src/core/profiling/stap_timers.c",
     "src/core/support/alloc.c",
     "src/core/support/cmdline.c",
     "src/core/support/cpu_iphone.c",
@@ -1003,6 +997,7 @@
     "src/core/support/thd_win32.c",
     "src/core/support/time.c",
     "src/core/support/time_posix.c",
+    "src/core/support/time_precise.c",
     "src/core/support/time_win32.c",
     "src/core/support/tls_pthread.c",
   ],
@@ -1034,6 +1029,7 @@
     "include/grpc/support/tls_msvc.h",
     "include/grpc/support/tls_pthread.h",
     "include/grpc/support/useful.h",
+    "src/core/profiling/timers.h",
     "src/core/support/block_annotate.h",
     "src/core/support/env.h",
     "src/core/support/file.h",
@@ -1110,6 +1106,8 @@
     "src/core/httpcli/format_request.c",
     "src/core/httpcli/httpcli.c",
     "src/core/httpcli/parser.c",
+    "src/core/iomgr/alarm.c",
+    "src/core/iomgr/alarm_heap.c",
     "src/core/iomgr/closure.c",
     "src/core/iomgr/endpoint.c",
     "src/core/iomgr/endpoint_pair_posix.c",
@@ -1140,8 +1138,6 @@
     "src/core/iomgr/tcp_server_windows.c",
     "src/core/iomgr/tcp_windows.c",
     "src/core/iomgr/time_averaged_stats.c",
-    "src/core/iomgr/timer.c",
-    "src/core/iomgr/timer_heap.c",
     "src/core/iomgr/udp_server.c",
     "src/core/iomgr/wakeup_fd_eventfd.c",
     "src/core/iomgr/wakeup_fd_nospecial.c",
@@ -1153,9 +1149,6 @@
     "src/core/json/json_reader.c",
     "src/core/json/json_string.c",
     "src/core/json/json_writer.c",
-    "src/core/profiling/basic_timers.c",
-    "src/core/profiling/stap_timers.c",
-    "src/core/surface/alarm.c",
     "src/core/surface/api_trace.c",
     "src/core/surface/byte_buffer.c",
     "src/core/surface/byte_buffer_queue.c",
@@ -1259,6 +1252,9 @@
     "src/core/httpcli/format_request.h",
     "src/core/httpcli/httpcli.h",
     "src/core/httpcli/parser.h",
+    "src/core/iomgr/alarm.h",
+    "src/core/iomgr/alarm_heap.h",
+    "src/core/iomgr/alarm_internal.h",
     "src/core/iomgr/closure.h",
     "src/core/iomgr/endpoint.h",
     "src/core/iomgr/endpoint_pair.h",
@@ -1286,9 +1282,6 @@
     "src/core/iomgr/tcp_server.h",
     "src/core/iomgr/tcp_windows.h",
     "src/core/iomgr/time_averaged_stats.h",
-    "src/core/iomgr/timer.h",
-    "src/core/iomgr/timer_heap.h",
-    "src/core/iomgr/timer_internal.h",
     "src/core/iomgr/udp_server.h",
     "src/core/iomgr/wakeup_fd_pipe.h",
     "src/core/iomgr/wakeup_fd_posix.h",
@@ -1299,7 +1292,6 @@
     "src/core/json/json_common.h",
     "src/core/json/json_reader.h",
     "src/core/json/json_writer.h",
-    "src/core/profiling/timers.h",
     "src/core/statistics/census_interface.h",
     "src/core/statistics/census_rpc_stats.h",
     "src/core/surface/api_trace.h",

diff --git a/Makefile b/Makefile
index 41e02aa..788fdb5 100644
--- a/Makefile
+++ b/Makefile

@@ -777,6 +777,8 @@
 stop:
 	@false
 
+alarm_heap_test: $(BINDIR)/$(CONFIG)/alarm_heap_test
+alarm_list_test: $(BINDIR)/$(CONFIG)/alarm_list_test
 alpn_test: $(BINDIR)/$(CONFIG)/alpn_test
 bin_encoder_test: $(BINDIR)/$(CONFIG)/bin_encoder_test
 chttp2_status_conversion_test: $(BINDIR)/$(CONFIG)/chttp2_status_conversion_test
@@ -808,7 +810,6 @@
 gpr_time_test: $(BINDIR)/$(CONFIG)/gpr_time_test
 gpr_tls_test: $(BINDIR)/$(CONFIG)/gpr_tls_test
 gpr_useful_test: $(BINDIR)/$(CONFIG)/gpr_useful_test
-grpc_alarm_test: $(BINDIR)/$(CONFIG)/grpc_alarm_test
 grpc_auth_context_test: $(BINDIR)/$(CONFIG)/grpc_auth_context_test
 grpc_base64_test: $(BINDIR)/$(CONFIG)/grpc_base64_test
 grpc_byte_buffer_reader_test: $(BINDIR)/$(CONFIG)/grpc_byte_buffer_reader_test
@@ -848,15 +849,12 @@
 tcp_server_posix_test: $(BINDIR)/$(CONFIG)/tcp_server_posix_test
 time_averaged_stats_test: $(BINDIR)/$(CONFIG)/time_averaged_stats_test
 timeout_encoding_test: $(BINDIR)/$(CONFIG)/timeout_encoding_test
-timer_heap_test: $(BINDIR)/$(CONFIG)/timer_heap_test
-timer_list_test: $(BINDIR)/$(CONFIG)/timer_list_test
 timers_test: $(BINDIR)/$(CONFIG)/timers_test
 transport_metadata_test: $(BINDIR)/$(CONFIG)/transport_metadata_test
 transport_security_test: $(BINDIR)/$(CONFIG)/transport_security_test
 udp_server_test: $(BINDIR)/$(CONFIG)/udp_server_test
 uri_parser_test: $(BINDIR)/$(CONFIG)/uri_parser_test
 workqueue_test: $(BINDIR)/$(CONFIG)/workqueue_test
-alarm_test: $(BINDIR)/$(CONFIG)/alarm_test
 async_end2end_test: $(BINDIR)/$(CONFIG)/async_end2end_test
 async_streaming_ping_pong_test: $(BINDIR)/$(CONFIG)/async_streaming_ping_pong_test
 async_unary_ping_pong_test: $(BINDIR)/$(CONFIG)/async_unary_ping_pong_test
@@ -1735,9 +1733,9 @@
 
 buildtests: buildtests_c buildtests_cxx buildtests_zookeeper
 
-buildtests_c: privatelibs_c $(BINDIR)/$(CONFIG)/alpn_test $(BINDIR)/$(CONFIG)/bin_encoder_test $(BINDIR)/$(CONFIG)/chttp2_status_conversion_test $(BINDIR)/$(CONFIG)/chttp2_stream_encoder_test $(BINDIR)/$(CONFIG)/chttp2_stream_map_test $(BINDIR)/$(CONFIG)/compression_test $(BINDIR)/$(CONFIG)/dualstack_socket_test $(BINDIR)/$(CONFIG)/endpoint_pair_test $(BINDIR)/$(CONFIG)/fd_conservation_posix_test $(BINDIR)/$(CONFIG)/fd_posix_test $(BINDIR)/$(CONFIG)/fling_client $(BINDIR)/$(CONFIG)/fling_server $(BINDIR)/$(CONFIG)/fling_stream_test $(BINDIR)/$(CONFIG)/fling_test $(BINDIR)/$(CONFIG)/gpr_cmdline_test $(BINDIR)/$(CONFIG)/gpr_env_test $(BINDIR)/$(CONFIG)/gpr_file_test $(BINDIR)/$(CONFIG)/gpr_histogram_test $(BINDIR)/$(CONFIG)/gpr_host_port_test $(BINDIR)/$(CONFIG)/gpr_log_test $(BINDIR)/$(CONFIG)/gpr_slice_buffer_test $(BINDIR)/$(CONFIG)/gpr_slice_test $(BINDIR)/$(CONFIG)/gpr_stack_lockfree_test $(BINDIR)/$(CONFIG)/gpr_string_test $(BINDIR)/$(CONFIG)/gpr_sync_test $(BINDIR)/$(CONFIG)/gpr_thd_test $(BINDIR)/$(CONFIG)/gpr_time_test $(BINDIR)/$(CONFIG)/gpr_tls_test $(BINDIR)/$(CONFIG)/gpr_useful_test $(BINDIR)/$(CONFIG)/grpc_alarm_test $(BINDIR)/$(CONFIG)/grpc_auth_context_test $(BINDIR)/$(CONFIG)/grpc_base64_test $(BINDIR)/$(CONFIG)/grpc_byte_buffer_reader_test $(BINDIR)/$(CONFIG)/grpc_channel_args_test $(BINDIR)/$(CONFIG)/grpc_channel_stack_test $(BINDIR)/$(CONFIG)/grpc_completion_queue_test $(BINDIR)/$(CONFIG)/grpc_credentials_test $(BINDIR)/$(CONFIG)/grpc_json_token_test $(BINDIR)/$(CONFIG)/grpc_jwt_verifier_test $(BINDIR)/$(CONFIG)/grpc_security_connector_test $(BINDIR)/$(CONFIG)/grpc_stream_op_test $(BINDIR)/$(CONFIG)/hpack_parser_test $(BINDIR)/$(CONFIG)/hpack_table_test $(BINDIR)/$(CONFIG)/httpcli_format_request_test $(BINDIR)/$(CONFIG)/httpcli_parser_test $(BINDIR)/$(CONFIG)/httpcli_test $(BINDIR)/$(CONFIG)/json_rewrite $(BINDIR)/$(CONFIG)/json_rewrite_test $(BINDIR)/$(CONFIG)/json_test $(BINDIR)/$(CONFIG)/lame_client_test $(BINDIR)/$(CONFIG)/lb_policies_test $(BINDIR)/$(CONFIG)/message_compress_test $(BINDIR)/$(CONFIG)/multi_init_test $(BINDIR)/$(CONFIG)/multiple_server_queues_test $(BINDIR)/$(CONFIG)/murmur_hash_test $(BINDIR)/$(CONFIG)/no_server_test $(BINDIR)/$(CONFIG)/resolve_address_test $(BINDIR)/$(CONFIG)/secure_endpoint_test $(BINDIR)/$(CONFIG)/sockaddr_utils_test $(BINDIR)/$(CONFIG)/tcp_client_posix_test $(BINDIR)/$(CONFIG)/tcp_posix_test $(BINDIR)/$(CONFIG)/tcp_server_posix_test $(BINDIR)/$(CONFIG)/time_averaged_stats_test $(BINDIR)/$(CONFIG)/timeout_encoding_test $(BINDIR)/$(CONFIG)/timer_heap_test $(BINDIR)/$(CONFIG)/timer_list_test $(BINDIR)/$(CONFIG)/timers_test $(BINDIR)/$(CONFIG)/transport_metadata_test $(BINDIR)/$(CONFIG)/transport_security_test $(BINDIR)/$(CONFIG)/udp_server_test $(BINDIR)/$(CONFIG)/uri_parser_test $(BINDIR)/$(CONFIG)/workqueue_test $(BINDIR)/$(CONFIG)/h2_compress_bad_hostname_test $(BINDIR)/$(CONFIG)/h2_compress_binary_metadata_test $(BINDIR)/$(CONFIG)/h2_compress_call_creds_test $(BINDIR)/$(CONFIG)/h2_compress_cancel_after_accept_test $(BINDIR)/$(CONFIG)/h2_compress_cancel_after_client_done_test $(BINDIR)/$(CONFIG)/h2_compress_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/h2_compress_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/h2_compress_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/h2_compress_census_simple_request_test $(BINDIR)/$(CONFIG)/h2_compress_channel_connectivity_test $(BINDIR)/$(CONFIG)/h2_compress_compressed_payload_test $(BINDIR)/$(CONFIG)/h2_compress_default_host_test $(BINDIR)/$(CONFIG)/h2_compress_disappearing_server_test $(BINDIR)/$(CONFIG)/h2_compress_empty_batch_test $(BINDIR)/$(CONFIG)/h2_compress_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/h2_compress_high_initial_seqno_test $(BINDIR)/$(CONFIG)/h2_compress_invoke_large_request_test $(BINDIR)/$(CONFIG)/h2_compress_large_metadata_test $(BINDIR)/$(CONFIG)/h2_compress_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/h2_compress_max_message_length_test $(BINDIR)/$(CONFIG)/h2_compress_metadata_test $(BINDIR)/$(CONFIG)/h2_compress_no_op_test $(BINDIR)/$(CONFIG)/h2_compress_payload_test $(BINDIR)/$(CONFIG)/h2_compress_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/h2_compress_registered_call_test $(BINDIR)/$(CONFIG)/h2_compress_request_with_flags_test $(BINDIR)/$(CONFIG)/h2_compress_request_with_payload_test $(BINDIR)/$(CONFIG)/h2_compress_server_finishes_request_test $(BINDIR)/$(CONFIG)/h2_compress_shutdown_finishes_calls_test $(BINDIR)/$(CONFIG)/h2_compress_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/h2_compress_simple_delayed_request_test $(BINDIR)/$(CONFIG)/h2_compress_simple_request_test $(BINDIR)/$(CONFIG)/h2_compress_trailing_metadata_test $(BINDIR)/$(CONFIG)/h2_fakesec_bad_hostname_test $(BINDIR)/$(CONFIG)/h2_fakesec_binary_metadata_test $(BINDIR)/$(CONFIG)/h2_fakesec_call_creds_test $(BINDIR)/$(CONFIG)/h2_fakesec_cancel_after_accept_test $(BINDIR)/$(CONFIG)/h2_fakesec_cancel_after_client_done_test $(BINDIR)/$(CONFIG)/h2_fakesec_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/h2_fakesec_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/h2_fakesec_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/h2_fakesec_census_simple_request_test $(BINDIR)/$(CONFIG)/h2_fakesec_channel_connectivity_test $(BINDIR)/$(CONFIG)/h2_fakesec_compressed_payload_test $(BINDIR)/$(CONFIG)/h2_fakesec_default_host_test $(BINDIR)/$(CONFIG)/h2_fakesec_disappearing_server_test $(BINDIR)/$(CONFIG)/h2_fakesec_empty_batch_test $(BINDIR)/$(CONFIG)/h2_fakesec_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/h2_fakesec_high_initial_seqno_test $(BINDIR)/$(CONFIG)/h2_fakesec_invoke_large_request_test $(BINDIR)/$(CONFIG)/h2_fakesec_large_metadata_test $(BINDIR)/$(CONFIG)/h2_fakesec_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/h2_fakesec_max_message_length_test $(BINDIR)/$(CONFIG)/h2_fakesec_metadata_test $(BINDIR)/$(CONFIG)/h2_fakesec_no_op_test $(BINDIR)/$(CONFIG)/h2_fakesec_payload_test $(BINDIR)/$(CONFIG)/h2_fakesec_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/h2_fakesec_registered_call_test $(BINDIR)/$(CONFIG)/h2_fakesec_request_with_flags_test $(BINDIR)/$(CONFIG)/h2_fakesec_request_with_payload_test $(BINDIR)/$(CONFIG)/h2_fakesec_server_finishes_request_test $(BINDIR)/$(CONFIG)/h2_fakesec_shutdown_finishes_calls_test $(BINDIR)/$(CONFIG)/h2_fakesec_shutdown_finishes_tags_test $(BINDIR)/$(CONFIG)/h2_fakesec_simple_delayed_request_test $(BINDIR)/$(CONFIG)/h2_fakesec_simple_request_test $(BINDIR)/$(CONFIG)/h2_fakesec_trailing_metadata_test $(BINDIR)/$(CONFIG)/h2_full_bad_hostname_test $(BINDIR)/$(CONFIG)/h2_full_binary_metadata_test $(BINDIR)/$(CONFIG)/h2_full_call_creds_test $(BINDIR)/$(CONFIG)/h2_full_cancel_after_accept_test $(BINDIR)/$(CONFIG)/h2_full_cancel_after_client_done_test $(BINDIR)/$(CONFIG)/h2_full_cancel_after_invoke_test $(BINDIR)/$(CONFIG)/h2_full_cancel_before_invoke_test $(BINDIR)/$(CONFIG)/h2_full_cancel_in_a_vacuum_test $(BINDIR)/$(CONFIG)/h2_full_census_simple_request_test $(BINDIR)/$(CONFIG)/h2_full_channel_connectivity_test $(BINDIR)/$(CONFIG)/h2_full_compressed_payload_test $(BINDIR)/$(CONFIG)/h2_full_default_host_test $(BINDIR)/$(CONFIG)/h2_full_disappearing_server_test $(BINDIR)/$(CONFIG)/h2_full_empty_batch_test $(BINDIR)/$(CONFIG)/h2_full_graceful_server_shutdown_test $(BINDIR)/$(CONFIG)/h2_full_high_initial_seqno_test $(BINDIR)/$(CONFIG)/h2_full_invoke_large_request_test $(BINDIR)/$(CONFIG)/h2_full_large_metadata_test $(BINDIR)/$(CONFIG)/h2_full_max_concurrent_streams_test $(BINDIR)/$(CONFIG)/h2_full_max_message_length_test $(BINDIR)/$(CONFIG)/h2_full_metadata_test $(BINDIR)/$(CONFIG)/h2_full_no_op_test $(BINDIR)/$(CONFIG)/h2_full_payload_test $(BINDIR)/$(CONFIG)/h2_full_ping_pong_streaming_test $(BINDIR)/$(CONFIG)/h2_full_registered_call_test $(BINDIR)/$(CONFIG)/h2_full_request_with_flags_test 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$(BINDIR)/$(CONFIG)/h2_sockpair+trace_max_concurrent_streams_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_max_message_length_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_no_op_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_ping_pong_streaming_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_registered_call_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_request_with_flags_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_request_with_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_server_finishes_request_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_shutdown_finishes_calls_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_shutdown_finishes_tags_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_simple_request_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair+trace_trailing_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_bad_hostname_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_binary_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_cancel_after_accept_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_cancel_after_client_done_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_cancel_after_invoke_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_cancel_before_invoke_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_cancel_in_a_vacuum_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_census_simple_request_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_compressed_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_empty_batch_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_graceful_server_shutdown_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_high_initial_seqno_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_invoke_large_request_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_large_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_max_concurrent_streams_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_max_message_length_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_no_op_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_ping_pong_streaming_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_registered_call_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_request_with_flags_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_request_with_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_server_finishes_request_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_shutdown_finishes_calls_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_shutdown_finishes_tags_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_simple_request_nosec_test $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_trailing_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_bad_hostname_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_binary_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_cancel_after_accept_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_cancel_after_client_done_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_cancel_after_invoke_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_cancel_before_invoke_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_cancel_in_a_vacuum_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_census_simple_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_channel_connectivity_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_compressed_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_disappearing_server_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_empty_batch_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_graceful_server_shutdown_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_high_initial_seqno_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_invoke_large_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_large_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_max_concurrent_streams_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_max_message_length_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_no_op_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_ping_pong_streaming_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_registered_call_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_request_with_flags_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_request_with_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_server_finishes_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_shutdown_finishes_calls_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_shutdown_finishes_tags_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_simple_delayed_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_simple_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds_trailing_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_bad_hostname_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_binary_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_cancel_after_accept_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_cancel_after_client_done_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_cancel_after_invoke_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_cancel_before_invoke_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_cancel_in_a_vacuum_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_census_simple_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_channel_connectivity_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_compressed_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_disappearing_server_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_empty_batch_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_graceful_server_shutdown_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_high_initial_seqno_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_invoke_large_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_large_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_max_concurrent_streams_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_max_message_length_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_metadata_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_no_op_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_ping_pong_streaming_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_registered_call_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_request_with_flags_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_request_with_payload_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_server_finishes_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_shutdown_finishes_calls_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_shutdown_finishes_tags_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_simple_delayed_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_simple_request_nosec_test $(BINDIR)/$(CONFIG)/h2_uds+poll_trailing_metadata_nosec_test $(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test $(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test
 
-buildtests_cxx: buildtests_zookeeper privatelibs_cxx $(BINDIR)/$(CONFIG)/alarm_test $(BINDIR)/$(CONFIG)/async_end2end_test $(BINDIR)/$(CONFIG)/async_streaming_ping_pong_test $(BINDIR)/$(CONFIG)/async_unary_ping_pong_test $(BINDIR)/$(CONFIG)/auth_property_iterator_test $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/cli_call_test $(BINDIR)/$(CONFIG)/client_crash_test $(BINDIR)/$(CONFIG)/client_crash_test_server $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/cxx_byte_buffer_test $(BINDIR)/$(CONFIG)/cxx_slice_test $(BINDIR)/$(CONFIG)/cxx_string_ref_test $(BINDIR)/$(CONFIG)/cxx_time_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/generic_end2end_test $(BINDIR)/$(CONFIG)/grpc_cli $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/interop_test $(BINDIR)/$(CONFIG)/mock_test $(BINDIR)/$(CONFIG)/qps_interarrival_test $(BINDIR)/$(CONFIG)/qps_openloop_test $(BINDIR)/$(CONFIG)/qps_test $(BINDIR)/$(CONFIG)/reconnect_interop_client $(BINDIR)/$(CONFIG)/reconnect_interop_server $(BINDIR)/$(CONFIG)/secure_auth_context_test $(BINDIR)/$(CONFIG)/server_crash_test $(BINDIR)/$(CONFIG)/server_crash_test_client $(BINDIR)/$(CONFIG)/shutdown_test $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/streaming_throughput_test $(BINDIR)/$(CONFIG)/sync_streaming_ping_pong_test $(BINDIR)/$(CONFIG)/sync_unary_ping_pong_test $(BINDIR)/$(CONFIG)/thread_stress_test
+buildtests_cxx: buildtests_zookeeper privatelibs_cxx $(BINDIR)/$(CONFIG)/async_end2end_test $(BINDIR)/$(CONFIG)/async_streaming_ping_pong_test $(BINDIR)/$(CONFIG)/async_unary_ping_pong_test $(BINDIR)/$(CONFIG)/auth_property_iterator_test $(BINDIR)/$(CONFIG)/channel_arguments_test $(BINDIR)/$(CONFIG)/cli_call_test $(BINDIR)/$(CONFIG)/client_crash_test $(BINDIR)/$(CONFIG)/client_crash_test_server $(BINDIR)/$(CONFIG)/credentials_test $(BINDIR)/$(CONFIG)/cxx_byte_buffer_test $(BINDIR)/$(CONFIG)/cxx_slice_test $(BINDIR)/$(CONFIG)/cxx_string_ref_test $(BINDIR)/$(CONFIG)/cxx_time_test $(BINDIR)/$(CONFIG)/end2end_test $(BINDIR)/$(CONFIG)/generic_end2end_test $(BINDIR)/$(CONFIG)/grpc_cli $(BINDIR)/$(CONFIG)/interop_client $(BINDIR)/$(CONFIG)/interop_server $(BINDIR)/$(CONFIG)/interop_test $(BINDIR)/$(CONFIG)/mock_test $(BINDIR)/$(CONFIG)/qps_interarrival_test $(BINDIR)/$(CONFIG)/qps_openloop_test $(BINDIR)/$(CONFIG)/qps_test $(BINDIR)/$(CONFIG)/reconnect_interop_client $(BINDIR)/$(CONFIG)/reconnect_interop_server $(BINDIR)/$(CONFIG)/secure_auth_context_test $(BINDIR)/$(CONFIG)/server_crash_test $(BINDIR)/$(CONFIG)/server_crash_test_client $(BINDIR)/$(CONFIG)/shutdown_test $(BINDIR)/$(CONFIG)/status_test $(BINDIR)/$(CONFIG)/streaming_throughput_test $(BINDIR)/$(CONFIG)/sync_streaming_ping_pong_test $(BINDIR)/$(CONFIG)/sync_unary_ping_pong_test $(BINDIR)/$(CONFIG)/thread_stress_test
 
 ifeq ($(HAS_ZOOKEEPER),true)
 buildtests_zookeeper: privatelibs_zookeeper $(BINDIR)/$(CONFIG)/zookeeper_test
@@ -1751,6 +1749,10 @@
 flaky_test: flaky_test_c flaky_test_cxx flaky_test_zookeeper
 
 test_c: buildtests_c
+	$(E) "[RUN]     Testing alarm_heap_test"
+	$(Q) $(BINDIR)/$(CONFIG)/alarm_heap_test || ( echo test alarm_heap_test failed ; exit 1 )
+	$(E) "[RUN]     Testing alarm_list_test"
+	$(Q) $(BINDIR)/$(CONFIG)/alarm_list_test || ( echo test alarm_list_test failed ; exit 1 )
 	$(E) "[RUN]     Testing alpn_test"
 	$(Q) $(BINDIR)/$(CONFIG)/alpn_test || ( echo test alpn_test failed ; exit 1 )
 	$(E) "[RUN]     Testing bin_encoder_test"
@@ -1805,8 +1807,6 @@
 	$(Q) $(BINDIR)/$(CONFIG)/gpr_tls_test || ( echo test gpr_tls_test failed ; exit 1 )
 	$(E) "[RUN]     Testing gpr_useful_test"
 	$(Q) $(BINDIR)/$(CONFIG)/gpr_useful_test || ( echo test gpr_useful_test failed ; exit 1 )
-	$(E) "[RUN]     Testing grpc_alarm_test"
-	$(Q) $(BINDIR)/$(CONFIG)/grpc_alarm_test || ( echo test grpc_alarm_test failed ; exit 1 )
 	$(E) "[RUN]     Testing grpc_auth_context_test"
 	$(Q) $(BINDIR)/$(CONFIG)/grpc_auth_context_test || ( echo test grpc_auth_context_test failed ; exit 1 )
 	$(E) "[RUN]     Testing grpc_base64_test"
@@ -1873,10 +1873,6 @@
 	$(Q) $(BINDIR)/$(CONFIG)/time_averaged_stats_test || ( echo test time_averaged_stats_test failed ; exit 1 )
 	$(E) "[RUN]     Testing timeout_encoding_test"
 	$(Q) $(BINDIR)/$(CONFIG)/timeout_encoding_test || ( echo test timeout_encoding_test failed ; exit 1 )
-	$(E) "[RUN]     Testing timer_heap_test"
-	$(Q) $(BINDIR)/$(CONFIG)/timer_heap_test || ( echo test timer_heap_test failed ; exit 1 )
-	$(E) "[RUN]     Testing timer_list_test"
-	$(Q) $(BINDIR)/$(CONFIG)/timer_list_test || ( echo test timer_list_test failed ; exit 1 )
 	$(E) "[RUN]     Testing timers_test"
 	$(Q) $(BINDIR)/$(CONFIG)/timers_test || ( echo test timers_test failed ; exit 1 )
 	$(E) "[RUN]     Testing transport_metadata_test"
@@ -3319,8 +3315,6 @@
 
 
 test_cxx: test_zookeeper buildtests_cxx
-	$(E) "[RUN]     Testing alarm_test"
-	$(Q) $(BINDIR)/$(CONFIG)/alarm_test || ( echo test alarm_test failed ; exit 1 )
 	$(E) "[RUN]     Testing async_end2end_test"
 	$(Q) $(BINDIR)/$(CONFIG)/async_end2end_test || ( echo test async_end2end_test failed ; exit 1 )
 	$(E) "[RUN]     Testing async_streaming_ping_pong_test"
@@ -3899,6 +3893,8 @@
 
 
 LIBGPR_SRC = \
+    src/core/profiling/basic_timers.c \
+    src/core/profiling/stap_timers.c \
     src/core/support/alloc.c \
     src/core/support/cmdline.c \
     src/core/support/cpu_iphone.c \
@@ -3934,6 +3930,7 @@
     src/core/support/thd_win32.c \
     src/core/support/time.c \
     src/core/support/time_posix.c \
+    src/core/support/time_precise.c \
     src/core/support/time_win32.c \
     src/core/support/tls_pthread.c \
 
@@ -4080,6 +4077,8 @@
     src/core/httpcli/format_request.c \
     src/core/httpcli/httpcli.c \
     src/core/httpcli/parser.c \
+    src/core/iomgr/alarm.c \
+    src/core/iomgr/alarm_heap.c \
     src/core/iomgr/closure.c \
     src/core/iomgr/endpoint.c \
     src/core/iomgr/endpoint_pair_posix.c \
@@ -4110,8 +4109,6 @@
     src/core/iomgr/tcp_server_windows.c \
     src/core/iomgr/tcp_windows.c \
     src/core/iomgr/time_averaged_stats.c \
-    src/core/iomgr/timer.c \
-    src/core/iomgr/timer_heap.c \
     src/core/iomgr/udp_server.c \
     src/core/iomgr/wakeup_fd_eventfd.c \
     src/core/iomgr/wakeup_fd_nospecial.c \
@@ -4123,9 +4120,6 @@
     src/core/json/json_reader.c \
     src/core/json/json_string.c \
     src/core/json/json_writer.c \
-    src/core/profiling/basic_timers.c \
-    src/core/profiling/stap_timers.c \
-    src/core/surface/alarm.c \
     src/core/surface/api_trace.c \
     src/core/surface/byte_buffer.c \
     src/core/surface/byte_buffer_queue.c \
@@ -4363,6 +4357,8 @@
     src/core/httpcli/format_request.c \
     src/core/httpcli/httpcli.c \
     src/core/httpcli/parser.c \
+    src/core/iomgr/alarm.c \
+    src/core/iomgr/alarm_heap.c \
     src/core/iomgr/closure.c \
     src/core/iomgr/endpoint.c \
     src/core/iomgr/endpoint_pair_posix.c \
@@ -4393,8 +4389,6 @@
     src/core/iomgr/tcp_server_windows.c \
     src/core/iomgr/tcp_windows.c \
     src/core/iomgr/time_averaged_stats.c \
-    src/core/iomgr/timer.c \
-    src/core/iomgr/timer_heap.c \
     src/core/iomgr/udp_server.c \
     src/core/iomgr/wakeup_fd_eventfd.c \
     src/core/iomgr/wakeup_fd_nospecial.c \
@@ -4406,9 +4400,6 @@
     src/core/json/json_reader.c \
     src/core/json/json_string.c \
     src/core/json/json_writer.c \
-    src/core/profiling/basic_timers.c \
-    src/core/profiling/stap_timers.c \
-    src/core/surface/alarm.c \
     src/core/surface/api_trace.c \
     src/core/surface/byte_buffer.c \
     src/core/surface/byte_buffer_queue.c \
@@ -4597,7 +4588,6 @@
     src/cpp/client/credentials.cc \
     src/cpp/client/generic_stub.cc \
     src/cpp/client/insecure_credentials.cc \
-    src/cpp/common/alarm.cc \
     src/cpp/common/call.cc \
     src/cpp/common/completion_queue.cc \
     src/cpp/common/rpc_method.cc \
@@ -4618,7 +4608,6 @@
     src/cpp/util/time.cc \
 
 PUBLIC_HEADERS_CXX += \
-    include/grpc++/alarm.h \
     include/grpc++/channel.h \
     include/grpc++/client_context.h \
     include/grpc++/completion_queue.h \
@@ -4845,7 +4834,6 @@
     src/cpp/client/credentials.cc \
     src/cpp/client/generic_stub.cc \
     src/cpp/client/insecure_credentials.cc \
-    src/cpp/common/alarm.cc \
     src/cpp/common/call.cc \
     src/cpp/common/completion_queue.cc \
     src/cpp/common/rpc_method.cc \
@@ -4866,7 +4854,6 @@
     src/cpp/util/time.cc \
 
 PUBLIC_HEADERS_CXX += \
-    include/grpc++/alarm.h \
     include/grpc++/channel.h \
     include/grpc++/client_context.h \
     include/grpc++/completion_queue.h \
@@ -6571,6 +6558,64 @@
 # All of the test targets, and protoc plugins
 
 
+ALARM_HEAP_TEST_SRC = \
+    test/core/iomgr/alarm_heap_test.c \
+
+ALARM_HEAP_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(ALARM_HEAP_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/alarm_heap_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/alarm_heap_test: $(ALARM_HEAP_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(ALARM_HEAP_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/alarm_heap_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/iomgr/alarm_heap_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+deps_alarm_heap_test: $(ALARM_HEAP_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(ALARM_HEAP_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
+ALARM_LIST_TEST_SRC = \
+    test/core/iomgr/alarm_list_test.c \
+
+ALARM_LIST_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(ALARM_LIST_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/alarm_list_test: openssl_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/alarm_list_test: $(ALARM_LIST_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(ALARM_LIST_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/alarm_list_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/iomgr/alarm_list_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+deps_alarm_list_test: $(ALARM_LIST_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(ALARM_LIST_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 ALPN_TEST_SRC = \
     test/core/transport/chttp2/alpn_test.c \
 
@@ -7470,35 +7515,6 @@
 endif
 
 
-GRPC_ALARM_TEST_SRC = \
-    test/core/surface/alarm_test.c \
-
-GRPC_ALARM_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(GRPC_ALARM_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/grpc_alarm_test: openssl_dep_error
-
-else
-
-$(BINDIR)/$(CONFIG)/grpc_alarm_test: $(GRPC_ALARM_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(GRPC_ALARM_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/grpc_alarm_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/surface/alarm_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-deps_grpc_alarm_test: $(GRPC_ALARM_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(GRPC_ALARM_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
 GRPC_AUTH_CONTEXT_TEST_SRC = \
     test/core/security/auth_context_test.c \
 
@@ -8630,64 +8646,6 @@
 endif
 
 
-TIMER_HEAP_TEST_SRC = \
-    test/core/iomgr/timer_heap_test.c \
-
-TIMER_HEAP_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(TIMER_HEAP_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/timer_heap_test: openssl_dep_error
-
-else
-
-$(BINDIR)/$(CONFIG)/timer_heap_test: $(TIMER_HEAP_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(TIMER_HEAP_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/timer_heap_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/iomgr/timer_heap_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-deps_timer_heap_test: $(TIMER_HEAP_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(TIMER_HEAP_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
-TIMER_LIST_TEST_SRC = \
-    test/core/iomgr/timer_list_test.c \
-
-TIMER_LIST_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(TIMER_LIST_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/timer_list_test: openssl_dep_error
-
-else
-
-$(BINDIR)/$(CONFIG)/timer_list_test: $(TIMER_LIST_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(TIMER_LIST_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/timer_list_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/iomgr/timer_list_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-deps_timer_list_test: $(TIMER_LIST_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(TIMER_LIST_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
 TIMERS_TEST_SRC = \
     test/core/profiling/timers_test.c \
 
@@ -8862,46 +8820,6 @@
 endif
 
 
-ALARM_TEST_SRC = \
-    test/cpp/common/alarm_test.cc \
-
-ALARM_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(ALARM_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/alarm_test: openssl_dep_error
-
-else
-
-
-ifeq ($(NO_PROTOBUF),true)
-
-# You can't build the protoc plugins or protobuf-enabled targets if you don't have protobuf 3.0.0+.
-
-$(BINDIR)/$(CONFIG)/alarm_test: protobuf_dep_error
-
-else
-
-$(BINDIR)/$(CONFIG)/alarm_test: $(PROTOBUF_DEP) $(ALARM_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LDXX) $(LDFLAGS) $(ALARM_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/alarm_test
-
-endif
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/cpp/common/alarm_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-deps_alarm_test: $(ALARM_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(ALARM_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
 ASYNC_END2END_TEST_SRC = \
     test/cpp/end2end/async_end2end_test.cc \
 

diff --git a/binding.gyp b/binding.gyp
index a91e0e1..39036b3 100644
--- a/binding.gyp
+++ b/binding.gyp

@@ -64,6 +64,8 @@
       'dependencies': [
       ],
       'sources': [
+        'src/core/profiling/basic_timers.c',
+        'src/core/profiling/stap_timers.c',
         'src/core/support/alloc.c',
         'src/core/support/cmdline.c',
         'src/core/support/cpu_iphone.c',
@@ -99,6 +101,7 @@
         'src/core/support/thd_win32.c',
         'src/core/support/time.c',
         'src/core/support/time_posix.c',
+        'src/core/support/time_precise.c',
         'src/core/support/time_win32.c',
         'src/core/support/tls_pthread.c',
       ],
@@ -165,6 +168,8 @@
         'src/core/httpcli/format_request.c',
         'src/core/httpcli/httpcli.c',
         'src/core/httpcli/parser.c',
+        'src/core/iomgr/alarm.c',
+        'src/core/iomgr/alarm_heap.c',
         'src/core/iomgr/closure.c',
         'src/core/iomgr/endpoint.c',
         'src/core/iomgr/endpoint_pair_posix.c',
@@ -195,8 +200,6 @@
         'src/core/iomgr/tcp_server_windows.c',
         'src/core/iomgr/tcp_windows.c',
         'src/core/iomgr/time_averaged_stats.c',
-        'src/core/iomgr/timer.c',
-        'src/core/iomgr/timer_heap.c',
         'src/core/iomgr/udp_server.c',
         'src/core/iomgr/wakeup_fd_eventfd.c',
         'src/core/iomgr/wakeup_fd_nospecial.c',
@@ -208,9 +211,6 @@
         'src/core/json/json_reader.c',
         'src/core/json/json_string.c',
         'src/core/json/json_writer.c',
-        'src/core/profiling/basic_timers.c',
-        'src/core/profiling/stap_timers.c',
-        'src/core/surface/alarm.c',
         'src/core/surface/api_trace.c',
         'src/core/surface/byte_buffer.c',
         'src/core/surface/byte_buffer_queue.c',

diff --git a/build.yaml b/build.yaml
index e3d8a53..9fd667d 100644
--- a/build.yaml
+++ b/build.yaml

@@ -23,7 +23,6 @@
   - src/core/census/tracing.c
 - name: grpc++_base
   public_headers:
-  - include/grpc++/alarm.h
   - include/grpc++/channel.h
   - include/grpc++/client_context.h
   - include/grpc++/completion_queue.h
@@ -80,7 +79,6 @@
   - src/cpp/client/credentials.cc
   - src/cpp/client/generic_stub.cc
   - src/cpp/client/insecure_credentials.cc
-  - src/cpp/common/alarm.cc
   - src/cpp/common/call.cc
   - src/cpp/common/completion_queue.cc
   - src/cpp/common/rpc_method.cc
@@ -139,6 +137,9 @@
   - src/core/httpcli/format_request.h
   - src/core/httpcli/httpcli.h
   - src/core/httpcli/parser.h
+  - src/core/iomgr/alarm.h
+  - src/core/iomgr/alarm_heap.h
+  - src/core/iomgr/alarm_internal.h
   - src/core/iomgr/closure.h
   - src/core/iomgr/endpoint.h
   - src/core/iomgr/endpoint_pair.h
@@ -166,9 +167,6 @@
   - src/core/iomgr/tcp_server.h
   - src/core/iomgr/tcp_windows.h
   - src/core/iomgr/time_averaged_stats.h
-  - src/core/iomgr/timer.h
-  - src/core/iomgr/timer_heap.h
-  - src/core/iomgr/timer_internal.h
   - src/core/iomgr/udp_server.h
   - src/core/iomgr/wakeup_fd_pipe.h
   - src/core/iomgr/wakeup_fd_posix.h
@@ -179,7 +177,6 @@
   - src/core/json/json_common.h
   - src/core/json/json_reader.h
   - src/core/json/json_writer.h
-  - src/core/profiling/timers.h
   - src/core/statistics/census_interface.h
   - src/core/statistics/census_rpc_stats.h
   - src/core/surface/api_trace.h
@@ -252,6 +249,8 @@
   - src/core/httpcli/format_request.c
   - src/core/httpcli/httpcli.c
   - src/core/httpcli/parser.c
+  - src/core/iomgr/alarm.c
+  - src/core/iomgr/alarm_heap.c
   - src/core/iomgr/closure.c
   - src/core/iomgr/endpoint.c
   - src/core/iomgr/endpoint_pair_posix.c
@@ -282,8 +281,6 @@
   - src/core/iomgr/tcp_server_windows.c
   - src/core/iomgr/tcp_windows.c
   - src/core/iomgr/time_averaged_stats.c
-  - src/core/iomgr/timer.c
-  - src/core/iomgr/timer_heap.c
   - src/core/iomgr/udp_server.c
   - src/core/iomgr/wakeup_fd_eventfd.c
   - src/core/iomgr/wakeup_fd_nospecial.c
@@ -295,9 +292,6 @@
   - src/core/json/json_reader.c
   - src/core/json/json_string.c
   - src/core/json/json_writer.c
-  - src/core/profiling/basic_timers.c
-  - src/core/profiling/stap_timers.c
-  - src/core/surface/alarm.c
   - src/core/surface/api_trace.c
   - src/core/surface/byte_buffer.c
   - src/core/surface/byte_buffer_queue.c
@@ -396,6 +390,7 @@
   - include/grpc/support/tls_pthread.h
   - include/grpc/support/useful.h
   headers:
+  - src/core/profiling/timers.h
   - src/core/support/block_annotate.h
   - src/core/support/env.h
   - src/core/support/file.h
@@ -406,6 +401,8 @@
   - src/core/support/thd_internal.h
   - src/core/support/time_precise.h
   src:
+  - src/core/profiling/basic_timers.c
+  - src/core/profiling/stap_timers.c
   - src/core/support/alloc.c
   - src/core/support/cmdline.c
   - src/core/support/cpu_iphone.c
@@ -441,6 +438,7 @@
   - src/core/support/thd_win32.c
   - src/core/support/time.c
   - src/core/support/time_posix.c
+  - src/core/support/time_precise.c
   - src/core/support/time_win32.c
   - src/core/support/tls_pthread.c
   secure: false
@@ -785,6 +783,26 @@
   - winsock
   - global
 targets:
+- name: alarm_heap_test
+  build: test
+  language: c
+  src:
+  - test/core/iomgr/alarm_heap_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
+- name: alarm_list_test
+  build: test
+  language: c
+  src:
+  - test/core/iomgr/alarm_list_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: alpn_test
   build: test
   language: c
@@ -1081,16 +1099,6 @@
   deps:
   - gpr_test_util
   - gpr
-- name: grpc_alarm_test
-  build: test
-  language: c
-  src:
-  - test/core/surface/alarm_test.c
-  deps:
-  - grpc_test_util
-  - grpc
-  - gpr_test_util
-  - gpr
 - name: grpc_auth_context_test
   build: test
   language: c
@@ -1502,26 +1510,6 @@
   - grpc
   - gpr_test_util
   - gpr
-- name: timer_heap_test
-  build: test
-  language: c
-  src:
-  - test/core/iomgr/timer_heap_test.c
-  deps:
-  - grpc_test_util
-  - grpc
-  - gpr_test_util
-  - gpr
-- name: timer_list_test
-  build: test
-  language: c
-  src:
-  - test/core/iomgr/timer_list_test.c
-  deps:
-  - grpc_test_util
-  - grpc
-  - gpr_test_util
-  - gpr
 - name: timers_test
   build: test
   language: c
@@ -1594,18 +1582,6 @@
   - mac
   - linux
   - posix
-- name: alarm_test
-  build: test
-  language: c++
-  src:
-  - test/cpp/common/alarm_test.cc
-  deps:
-  - grpc++_test_util
-  - grpc_test_util
-  - grpc++
-  - grpc
-  - gpr_test_util
-  - gpr
 - name: async_end2end_test
   build: test
   language: c++

diff --git a/gRPC.podspec b/gRPC.podspec
index 0516cba..66b49a8 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec

@@ -63,7 +63,8 @@
 
   # Core cross-platform gRPC library, written in C.
   s.subspec 'C-Core' do |ss|
-    ss.source_files = 'src/core/support/block_annotate.h',
+    ss.source_files = 'src/core/profiling/timers.h',
+                      'src/core/support/block_annotate.h',
                       'src/core/support/env.h',
                       'src/core/support/file.h',
                       'src/core/support/murmur_hash.h',
@@ -99,6 +100,8 @@
                       'grpc/support/tls_msvc.h',
                       'grpc/support/tls_pthread.h',
                       'grpc/support/useful.h',
+                      'src/core/profiling/basic_timers.c',
+                      'src/core/profiling/stap_timers.c',
                       'src/core/support/alloc.c',
                       'src/core/support/cmdline.c',
                       'src/core/support/cpu_iphone.c',
@@ -134,6 +137,7 @@
                       'src/core/support/thd_win32.c',
                       'src/core/support/time.c',
                       'src/core/support/time_posix.c',
+                      'src/core/support/time_precise.c',
                       'src/core/support/time_win32.c',
                       'src/core/support/tls_pthread.c',
                       'src/core/security/auth_filters.h',
@@ -181,6 +185,9 @@
                       'src/core/httpcli/format_request.h',
                       'src/core/httpcli/httpcli.h',
                       'src/core/httpcli/parser.h',
+                      'src/core/iomgr/alarm.h',
+                      'src/core/iomgr/alarm_heap.h',
+                      'src/core/iomgr/alarm_internal.h',
                       'src/core/iomgr/closure.h',
                       'src/core/iomgr/endpoint.h',
                       'src/core/iomgr/endpoint_pair.h',
@@ -208,9 +215,6 @@
                       'src/core/iomgr/tcp_server.h',
                       'src/core/iomgr/tcp_windows.h',
                       'src/core/iomgr/time_averaged_stats.h',
-                      'src/core/iomgr/timer.h',
-                      'src/core/iomgr/timer_heap.h',
-                      'src/core/iomgr/timer_internal.h',
                       'src/core/iomgr/udp_server.h',
                       'src/core/iomgr/wakeup_fd_pipe.h',
                       'src/core/iomgr/wakeup_fd_posix.h',
@@ -221,7 +225,6 @@
                       'src/core/json/json_common.h',
                       'src/core/json/json_reader.h',
                       'src/core/json/json_writer.h',
-                      'src/core/profiling/timers.h',
                       'src/core/statistics/census_interface.h',
                       'src/core/statistics/census_rpc_stats.h',
                       'src/core/surface/api_trace.h',
@@ -324,6 +327,8 @@
                       'src/core/httpcli/format_request.c',
                       'src/core/httpcli/httpcli.c',
                       'src/core/httpcli/parser.c',
+                      'src/core/iomgr/alarm.c',
+                      'src/core/iomgr/alarm_heap.c',
                       'src/core/iomgr/closure.c',
                       'src/core/iomgr/endpoint.c',
                       'src/core/iomgr/endpoint_pair_posix.c',
@@ -354,8 +359,6 @@
                       'src/core/iomgr/tcp_server_windows.c',
                       'src/core/iomgr/tcp_windows.c',
                       'src/core/iomgr/time_averaged_stats.c',
-                      'src/core/iomgr/timer.c',
-                      'src/core/iomgr/timer_heap.c',
                       'src/core/iomgr/udp_server.c',
                       'src/core/iomgr/wakeup_fd_eventfd.c',
                       'src/core/iomgr/wakeup_fd_nospecial.c',
@@ -367,9 +370,6 @@
                       'src/core/json/json_reader.c',
                       'src/core/json/json_string.c',
                       'src/core/json/json_writer.c',
-                      'src/core/profiling/basic_timers.c',
-                      'src/core/profiling/stap_timers.c',
-                      'src/core/surface/alarm.c',
                       'src/core/surface/api_trace.c',
                       'src/core/surface/byte_buffer.c',
                       'src/core/surface/byte_buffer_queue.c',
@@ -420,7 +420,8 @@
                       'src/core/census/operation.c',
                       'src/core/census/tracing.c'
 
-    ss.private_header_files = 'src/core/support/block_annotate.h',
+    ss.private_header_files = 'src/core/profiling/timers.h',
+                              'src/core/support/block_annotate.h',
                               'src/core/support/env.h',
                               'src/core/support/file.h',
                               'src/core/support/murmur_hash.h',
@@ -474,6 +475,9 @@
                               'src/core/httpcli/format_request.h',
                               'src/core/httpcli/httpcli.h',
                               'src/core/httpcli/parser.h',
+                              'src/core/iomgr/alarm.h',
+                              'src/core/iomgr/alarm_heap.h',
+                              'src/core/iomgr/alarm_internal.h',
                               'src/core/iomgr/closure.h',
                               'src/core/iomgr/endpoint.h',
                               'src/core/iomgr/endpoint_pair.h',
@@ -501,9 +505,6 @@
                               'src/core/iomgr/tcp_server.h',
                               'src/core/iomgr/tcp_windows.h',
                               'src/core/iomgr/time_averaged_stats.h',
-                              'src/core/iomgr/timer.h',
-                              'src/core/iomgr/timer_heap.h',
-                              'src/core/iomgr/timer_internal.h',
                               'src/core/iomgr/udp_server.h',
                               'src/core/iomgr/wakeup_fd_pipe.h',
                               'src/core/iomgr/wakeup_fd_posix.h',
@@ -514,7 +515,6 @@
                               'src/core/json/json_common.h',
                               'src/core/json/json_reader.h',
                               'src/core/json/json_writer.h',
-                              'src/core/profiling/timers.h',
                               'src/core/statistics/census_interface.h',
                               'src/core/statistics/census_rpc_stats.h',
                               'src/core/surface/api_trace.h',

diff --git a/src/compiler/cpp_generator.cc b/src/compiler/cpp_generator.cc
index 1bf2b16..3c8ca8a 100644
--- a/src/compiler/cpp_generator.cc
+++ b/src/compiler/cpp_generator.cc

@@ -585,7 +585,7 @@
       "class Service : public ::grpc::SynchronousService {\n"
       " public:\n");
   printer->Indent();
-  printer->Print("Service() : service_(nullptr) {}\n");
+  printer->Print("Service();\n");
   printer->Print("virtual ~Service();\n");
   for (int i = 0; i < service->method_count(); ++i) {
     PrintHeaderServerMethodSync(printer, service->method(i), vars);
@@ -594,7 +594,7 @@
   printer->Outdent();
   printer->Print(
       " private:\n"
-      "  ::grpc::RpcService* service_;\n");
+      "  std::unique_ptr< ::grpc::RpcService> service_;\n");
   printer->Print("};\n");
 
   // Server side - Asynchronous
@@ -1014,8 +1014,10 @@
                  "{}\n\n");
 
   printer->Print(*vars,
+                 "$ns$$Service$::Service::Service() {\n"
+                 "}\n\n");
+  printer->Print(*vars,
                  "$ns$$Service$::Service::~Service() {\n"
-                 "  delete service_;\n"
                  "}\n\n");
   for (int i = 0; i < service->method_count(); ++i) {
     (*vars)["Idx"] = as_string(i);
@@ -1026,10 +1028,10 @@
                  "::grpc::RpcService* $ns$$Service$::Service::service() {\n");
   printer->Indent();
   printer->Print(
-      "if (service_ != nullptr) {\n"
-      "  return service_;\n"
+      "if (service_) {\n"
+      "  return service_.get();\n"
       "}\n");
-  printer->Print("service_ = new ::grpc::RpcService();\n");
+  printer->Print("service_ = std::unique_ptr< ::grpc::RpcService>(new ::grpc::RpcService());\n");
   for (int i = 0; i < service->method_count(); ++i) {
     const grpc::protobuf::MethodDescriptor *method = service->method(i);
     (*vars)["Idx"] = as_string(i);
@@ -1077,7 +1079,7 @@
           "        std::mem_fn(&$ns$$Service$::Service::$Method$), this)));\n");
     }
   }
-  printer->Print("return service_;\n");
+  printer->Print("return service_.get();\n");
   printer->Outdent();
   printer->Print("}\n\n");
 }

diff --git a/src/core/channel/client_channel.c b/src/core/channel/client_channel.c
index ce8af96..9f85557 100644
--- a/src/core/channel/client_channel.c
+++ b/src/core/channel/client_channel.c

@@ -36,17 +36,19 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/surface/channel.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/support/string.h"
-#include "src/core/transport/connectivity_state.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/useful.h>
 
+#include "src/core/channel/channel_args.h"
+#include "src/core/channel/connected_channel.h"
+#include "src/core/iomgr/iomgr.h"
+#include "src/core/profiling/timers.h"
+#include "src/core/support/string.h"
+#include "src/core/surface/channel.h"
+#include "src/core/transport/connectivity_state.h"
+
 /* Client channel implementation */
 
 typedef struct call_data call_data;
@@ -242,6 +244,8 @@
   grpc_pollset *pollset;
   grpc_subchannel_call_create_status call_creation_status;
 
+  GPR_TIMER_BEGIN("picked_target", 0);
+
   if (calld->picked_channel == NULL) {
     /* treat this like a cancellation */
     calld->waiting_op.cancel_with_status = GRPC_STATUS_UNAVAILABLE;
@@ -266,6 +270,8 @@
       }
     }
   }
+
+  GPR_TIMER_END("picked_target", 0);
 }
 
 static grpc_closure *merge_into_waiting_op(grpc_call_element *elem,
@@ -326,6 +332,7 @@
   grpc_subchannel_call *subchannel_call;
   grpc_lb_policy *lb_policy;
   grpc_transport_stream_op op2;
+  GPR_TIMER_BEGIN("perform_transport_stream_op", 0);
   GPR_ASSERT(elem->filter == &grpc_client_channel_filter);
   GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
 
@@ -437,6 +444,8 @@
       }
       break;
   }
+
+  GPR_TIMER_END("perform_transport_stream_op", 0);
 }
 
 static void cc_start_transport_stream_op(grpc_exec_ctx *exec_ctx,

diff --git a/src/core/channel/compress_filter.c b/src/core/channel/compress_filter.c
index c32f150..20b5084 100644
--- a/src/core/channel/compress_filter.c
+++ b/src/core/channel/compress_filter.c

@@ -41,6 +41,7 @@
 
 #include "src/core/channel/compress_filter.h"
 #include "src/core/channel/channel_args.h"
+#include "src/core/profiling/timers.h"
 #include "src/core/compression/message_compress.h"
 #include "src/core/support/string.h"
 
@@ -271,10 +272,14 @@
 static void compress_start_transport_stream_op(grpc_exec_ctx *exec_ctx,
                                                grpc_call_element *elem,
                                                grpc_transport_stream_op *op) {
+  GPR_TIMER_BEGIN("compress_start_transport_stream_op", 0);
+
   if (op->send_ops && op->send_ops->nops > 0) {
     process_send_ops(elem, op->send_ops);
   }
 
+  GPR_TIMER_END("compress_start_transport_stream_op", 0);
+
   /* pass control down the stack */
   grpc_call_next_op(exec_ctx, elem, op);
 }

diff --git a/src/core/channel/connected_channel.c b/src/core/channel/connected_channel.c
index f9fc280..6d4d7be 100644
--- a/src/core/channel/connected_channel.c
+++ b/src/core/channel/connected_channel.c

@@ -39,6 +39,7 @@
 
 #include "src/core/support/string.h"
 #include "src/core/transport/transport.h"
+#include "src/core/profiling/timers.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>

diff --git a/src/core/channel/http_client_filter.c b/src/core/channel/http_client_filter.c
index d67dc37..f78a5cc 100644
--- a/src/core/channel/http_client_filter.c
+++ b/src/core/channel/http_client_filter.c

@@ -36,6 +36,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 #include "src/core/support/string.h"
+#include "src/core/profiling/timers.h"
 
 typedef struct call_data {
   grpc_linked_mdelem method;
@@ -162,8 +163,10 @@
 static void hc_start_transport_op(grpc_exec_ctx *exec_ctx,
                                   grpc_call_element *elem,
                                   grpc_transport_stream_op *op) {
+  GPR_TIMER_BEGIN("hc_start_transport_op", 0);
   GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
   hc_mutate_op(elem, op);
+  GPR_TIMER_END("hc_start_transport_op", 0);
   grpc_call_next_op(exec_ctx, elem, op);
 }
 

diff --git a/src/core/channel/http_server_filter.c b/src/core/channel/http_server_filter.c
index 5e6d684..99e5066 100644
--- a/src/core/channel/http_server_filter.c
+++ b/src/core/channel/http_server_filter.c

@@ -36,6 +36,7 @@
 #include <string.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+#include "src/core/profiling/timers.h"
 
 typedef struct call_data {
   gpr_uint8 got_initial_metadata;
@@ -230,8 +231,10 @@
                                   grpc_call_element *elem,
                                   grpc_transport_stream_op *op) {
   GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
+  GPR_TIMER_BEGIN("hs_start_transport_op", 0);
   hs_mutate_op(elem, op);
   grpc_call_next_op(exec_ctx, elem, op);
+  GPR_TIMER_END("hs_start_transport_op", 0);
 }
 
 /* Constructor for call_data */

diff --git a/src/core/client_config/lb_policies/pick_first.c b/src/core/client_config/lb_policies/pick_first.c
index 4b3aaab..e5bf068 100644
--- a/src/core/client_config/lb_policies/pick_first.c
+++ b/src/core/client_config/lb_policies/pick_first.c

@@ -175,7 +175,7 @@
   }
 }
 
-static void destroy_subchannels(grpc_exec_ctx *exec_ctx, void *arg, 
+static void destroy_subchannels(grpc_exec_ctx *exec_ctx, void *arg,
                                 int iomgr_success) {
   pick_first_lb_policy *p = arg;
   size_t i;
@@ -235,7 +235,8 @@
         GRPC_SUBCHANNEL_REF(p->selected, "picked_first");
         /* drop the pick list: we are connected now */
         GRPC_LB_POLICY_REF(&p->base, "destroy_subchannels");
-        grpc_exec_ctx_enqueue(exec_ctx, grpc_closure_create(destroy_subchannels, p), 1);
+        grpc_exec_ctx_enqueue(exec_ctx,
+                              grpc_closure_create(destroy_subchannels, p), 1);
         /* update any calls that were waiting for a pick */
         while ((pp = p->pending_picks)) {
           p->pending_picks = pp->next;

diff --git a/src/core/iomgr/exec_ctx.c b/src/core/iomgr/exec_ctx.c
index f2914d3..410b34c 100644
--- a/src/core/iomgr/exec_ctx.c
+++ b/src/core/iomgr/exec_ctx.c

@@ -35,18 +35,24 @@
 
 #include <grpc/support/log.h>
 
+#include "src/core/profiling/timers.h"
+
 int grpc_exec_ctx_flush(grpc_exec_ctx *exec_ctx) {
   int did_something = 0;
+  GPR_TIMER_BEGIN("grpc_exec_ctx_flush", 0);
   while (!grpc_closure_list_empty(exec_ctx->closure_list)) {
     grpc_closure *c = exec_ctx->closure_list.head;
     exec_ctx->closure_list.head = exec_ctx->closure_list.tail = NULL;
     while (c != NULL) {
       grpc_closure *next = c->next;
-      did_something = 1;
+      did_something++;
+      GPR_TIMER_BEGIN("grpc_exec_ctx_flush.cb", 0);
       c->cb(exec_ctx, c->cb_arg, c->success);
+      GPR_TIMER_END("grpc_exec_ctx_flush.cb", 0);
       c = next;
     }
   }
+  GPR_TIMER_END("grpc_exec_ctx_flush", 0);
   return did_something;
 }
 

diff --git a/src/core/iomgr/pollset_multipoller_with_epoll.c b/src/core/iomgr/pollset_multipoller_with_epoll.c
index ba9ba73..2aafd21 100644
--- a/src/core/iomgr/pollset_multipoller_with_epoll.c
+++ b/src/core/iomgr/pollset_multipoller_with_epoll.c

@@ -41,10 +41,11 @@
 #include <sys/epoll.h>
 #include <unistd.h>
 
-#include "src/core/iomgr/fd_posix.h"
-#include "src/core/support/block_annotate.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+#include "src/core/iomgr/fd_posix.h"
+#include "src/core/support/block_annotate.h"
+#include "src/core/profiling/timers.h"
 
 typedef struct wakeup_fd_hdl {
   grpc_wakeup_fd wakeup_fd;
@@ -182,9 +183,11 @@
 
   /* TODO(vpai): Consider first doing a 0 timeout poll here to avoid
      even going into the blocking annotation if possible */
+  GPR_TIMER_BEGIN("poll", 0);
   GRPC_SCHEDULING_START_BLOCKING_REGION;
   poll_rv = grpc_poll_function(pfds, 2, timeout_ms);
   GRPC_SCHEDULING_END_BLOCKING_REGION;
+  GPR_TIMER_END("poll", 0);
 
   if (poll_rv < 0) {
     if (errno != EINTR) {

diff --git a/src/core/iomgr/pollset_posix.c b/src/core/iomgr/pollset_posix.c
index d4362bb..c4e1987 100644
--- a/src/core/iomgr/pollset_posix.c
+++ b/src/core/iomgr/pollset_posix.c

@@ -101,9 +101,12 @@
 void grpc_pollset_kick_ext(grpc_pollset *p,
                            grpc_pollset_worker *specific_worker,
                            gpr_uint32 flags) {
+  GPR_TIMER_BEGIN("grpc_pollset_kick_ext", 0);
+
   /* pollset->mu already held */
   if (specific_worker != NULL) {
     if (specific_worker == GRPC_POLLSET_KICK_BROADCAST) {
+      GPR_TIMER_BEGIN("grpc_pollset_kick_ext.broadcast", 0);
       GPR_ASSERT((flags & GRPC_POLLSET_REEVALUATE_POLLING_ON_WAKEUP) == 0);
       for (specific_worker = p->root_worker.next;
            specific_worker != &p->root_worker;
@@ -111,44 +114,50 @@
         grpc_wakeup_fd_wakeup(&specific_worker->wakeup_fd);
       }
       p->kicked_without_pollers = 1;
-      return;
+      GPR_TIMER_END("grpc_pollset_kick_ext.broadcast", 0);
     } else if (gpr_tls_get(&g_current_thread_worker) !=
                (gpr_intptr)specific_worker) {
+      GPR_TIMER_MARK("different_thread_worker", 0);
       if ((flags & GRPC_POLLSET_REEVALUATE_POLLING_ON_WAKEUP) != 0) {
         specific_worker->reevaluate_polling_on_wakeup = 1;
       }
       grpc_wakeup_fd_wakeup(&specific_worker->wakeup_fd);
-      return;
     } else if ((flags & GRPC_POLLSET_CAN_KICK_SELF) != 0) {
+      GPR_TIMER_MARK("kick_yoself", 0);
       if ((flags & GRPC_POLLSET_REEVALUATE_POLLING_ON_WAKEUP) != 0) {
         specific_worker->reevaluate_polling_on_wakeup = 1;
       }
       grpc_wakeup_fd_wakeup(&specific_worker->wakeup_fd);
-      return;
     }
   } else if (gpr_tls_get(&g_current_thread_poller) != (gpr_intptr)p) {
     GPR_ASSERT((flags & GRPC_POLLSET_REEVALUATE_POLLING_ON_WAKEUP) == 0);
+    GPR_TIMER_MARK("kick_anonymous", 0);
     specific_worker = pop_front_worker(p);
     if (specific_worker != NULL) {
       if (gpr_tls_get(&g_current_thread_worker) ==
           (gpr_intptr)specific_worker) {
+        GPR_TIMER_MARK("kick_anonymous_not_self", 0);
         push_back_worker(p, specific_worker);
         specific_worker = pop_front_worker(p);
         if ((flags & GRPC_POLLSET_CAN_KICK_SELF) == 0 &&
             gpr_tls_get(&g_current_thread_worker) ==
                 (gpr_intptr)specific_worker) {
           push_back_worker(p, specific_worker);
-          return;
+          specific_worker = NULL;
         }
       }
-      push_back_worker(p, specific_worker);
-      grpc_wakeup_fd_wakeup(&specific_worker->wakeup_fd);
-      return;
+      if (specific_worker != NULL) {
+        GPR_TIMER_MARK("finally_kick", 0);
+        push_back_worker(p, specific_worker);
+        grpc_wakeup_fd_wakeup(&specific_worker->wakeup_fd);
+      }
     } else {
+      GPR_TIMER_MARK("kicked_no_pollers", 0);
       p->kicked_without_pollers = 1;
-      return;
     }
   }
+
+  GPR_TIMER_END("grpc_pollset_kick_ext", 0);
 }
 
 void grpc_pollset_kick(grpc_pollset *p, grpc_pollset_worker *specific_worker) {
@@ -229,6 +238,7 @@
   int locked = 1;
   int queued_work = 0;
   int keep_polling = 0;
+  GPR_TIMER_BEGIN("grpc_pollset_work", 0);
   /* this must happen before we (potentially) drop pollset->mu */
   worker->next = worker->prev = NULL;
   worker->reevaluate_polling_on_wakeup = 0;
@@ -273,8 +283,10 @@
       }
       gpr_tls_set(&g_current_thread_poller, (gpr_intptr)pollset);
       gpr_tls_set(&g_current_thread_worker, (gpr_intptr)worker);
+      GPR_TIMER_BEGIN("maybe_work_and_unlock", 0);
       pollset->vtable->maybe_work_and_unlock(exec_ctx, pollset, worker,
                                              deadline, now);
+      GPR_TIMER_END("maybe_work_and_unlock", 0);
       locked = 0;
       gpr_tls_set(&g_current_thread_poller, 0);
       gpr_tls_set(&g_current_thread_worker, 0);
@@ -329,6 +341,7 @@
       gpr_mu_lock(&pollset->mu);
     }
   }
+  GPR_TIMER_END("grpc_pollset_work", 0);
 }
 
 void grpc_pollset_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
@@ -563,10 +576,11 @@
      even going into the blocking annotation if possible */
   /* poll fd count (argument 2) is shortened by one if we have no events
      to poll on - such that it only includes the kicker */
+  GPR_TIMER_BEGIN("poll", 0);
   GRPC_SCHEDULING_START_BLOCKING_REGION;
   r = grpc_poll_function(pfd, nfds, timeout);
   GRPC_SCHEDULING_END_BLOCKING_REGION;
-  GRPC_TIMER_MARK(GRPC_PTAG_POLL_FINISHED, r);
+  GPR_TIMER_END("poll", 0);
 
   if (r < 0) {
     gpr_log(GPR_ERROR, "poll() failed: %s", strerror(errno));

diff --git a/src/core/iomgr/tcp_posix.c b/src/core/iomgr/tcp_posix.c
index 4a57037..915553d 100644
--- a/src/core/iomgr/tcp_posix.c
+++ b/src/core/iomgr/tcp_posix.c

@@ -180,7 +180,7 @@
   GPR_ASSERT(!tcp->finished_edge);
   GPR_ASSERT(tcp->iov_size <= MAX_READ_IOVEC);
   GPR_ASSERT(tcp->incoming_buffer->count <= MAX_READ_IOVEC);
-  GRPC_TIMER_BEGIN(GRPC_PTAG_HANDLE_READ, 0);
+  GPR_TIMER_BEGIN("tcp_continue_read", 0);
 
   while (tcp->incoming_buffer->count < (size_t)tcp->iov_size) {
     gpr_slice_buffer_add_indexed(tcp->incoming_buffer,
@@ -199,11 +199,11 @@
   msg.msg_controllen = 0;
   msg.msg_flags = 0;
 
-  GRPC_TIMER_BEGIN(GRPC_PTAG_RECVMSG, 0);
+  GPR_TIMER_BEGIN("recvmsg", 1);
   do {
     read_bytes = recvmsg(tcp->fd, &msg, 0);
   } while (read_bytes < 0 && errno == EINTR);
-  GRPC_TIMER_END(GRPC_PTAG_RECVMSG, 0);
+  GPR_TIMER_END("recvmsg", 0);
 
   if (read_bytes < 0) {
     /* NB: After calling call_read_cb a parallel call of the read handler may
@@ -240,7 +240,7 @@
     TCP_UNREF(exec_ctx, tcp, "read");
   }
 
-  GRPC_TIMER_END(GRPC_PTAG_HANDLE_READ, 0);
+  GPR_TIMER_END("tcp_continue_read", 0);
 }
 
 static void tcp_handle_read(grpc_exec_ctx *exec_ctx, void *arg /* grpc_tcp */,
@@ -316,12 +316,12 @@
     msg.msg_controllen = 0;
     msg.msg_flags = 0;
 
-    GRPC_TIMER_BEGIN(GRPC_PTAG_SENDMSG, 0);
+    GPR_TIMER_BEGIN("sendmsg", 1);
     do {
       /* TODO(klempner): Cork if this is a partial write */
       sent_length = sendmsg(tcp->fd, &msg, SENDMSG_FLAGS);
     } while (sent_length < 0 && errno == EINTR);
-    GRPC_TIMER_END(GRPC_PTAG_SENDMSG, 0);
+    GPR_TIMER_END("sendmsg", 0);
 
     if (sent_length < 0) {
       if (errno == EAGAIN) {
@@ -370,17 +370,17 @@
     return;
   }
 
-  GRPC_TIMER_BEGIN(GRPC_PTAG_TCP_CB_WRITE, 0);
   status = tcp_flush(tcp);
   if (status == FLUSH_PENDING) {
     grpc_fd_notify_on_write(exec_ctx, tcp->em_fd, &tcp->write_closure);
   } else {
     cb = tcp->write_cb;
     tcp->write_cb = NULL;
+    GPR_TIMER_BEGIN("tcp_handle_write.cb", 0);
     cb->cb(exec_ctx, cb->cb_arg, status == FLUSH_DONE);
+    GPR_TIMER_END("tcp_handle_write.cb", 0);
     TCP_UNREF(exec_ctx, tcp, "write");
   }
-  GRPC_TIMER_END(GRPC_PTAG_TCP_CB_WRITE, 0);
 }
 
 static void tcp_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
@@ -399,11 +399,11 @@
     }
   }
 
-  GRPC_TIMER_BEGIN(GRPC_PTAG_TCP_WRITE, 0);
+  GPR_TIMER_BEGIN("tcp_write", 0);
   GPR_ASSERT(tcp->write_cb == NULL);
 
   if (buf->length == 0) {
-    GRPC_TIMER_END(GRPC_PTAG_TCP_WRITE, 0);
+    GPR_TIMER_END("tcp_write", 0);
     grpc_exec_ctx_enqueue(exec_ctx, cb, 1);
     return;
   }
@@ -420,7 +420,7 @@
     grpc_exec_ctx_enqueue(exec_ctx, cb, status == FLUSH_DONE);
   }
 
-  GRPC_TIMER_END(GRPC_PTAG_TCP_WRITE, 0);
+  GPR_TIMER_END("tcp_write", 0);
 }
 
 static void tcp_add_to_pollset(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,

diff --git a/src/core/iomgr/wakeup_fd_eventfd.c b/src/core/iomgr/wakeup_fd_eventfd.c
index 48eb1af..f67379e 100644
--- a/src/core/iomgr/wakeup_fd_eventfd.c
+++ b/src/core/iomgr/wakeup_fd_eventfd.c

@@ -39,9 +39,11 @@
 #include <sys/eventfd.h>
 #include <unistd.h>
 
-#include "src/core/iomgr/wakeup_fd_posix.h"
 #include <grpc/support/log.h>
 
+#include "src/core/iomgr/wakeup_fd_posix.h"
+#include "src/core/profiling/timers.h"
+
 static void eventfd_create(grpc_wakeup_fd* fd_info) {
   int efd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
   /* TODO(klempner): Handle failure more gracefully */
@@ -60,9 +62,11 @@
 
 static void eventfd_wakeup(grpc_wakeup_fd* fd_info) {
   int err;
+  GPR_TIMER_BEGIN("eventfd_wakeup", 0);
   do {
     err = eventfd_write(fd_info->read_fd, 1);
   } while (err < 0 && errno == EINTR);
+  GPR_TIMER_END("eventfd_wakeup", 0);
 }
 
 static void eventfd_destroy(grpc_wakeup_fd* fd_info) {

diff --git a/src/core/profiling/basic_timers.c b/src/core/profiling/basic_timers.c
index 2f6c88d..b49cdd0 100644
--- a/src/core/profiling/basic_timers.c
+++ b/src/core/profiling/basic_timers.c

@@ -44,98 +44,91 @@
 #include <grpc/support/thd.h>
 #include <stdio.h>
 
-typedef enum {
-  BEGIN = '{',
-  END = '}',
-  MARK = '.',
-  IMPORTANT = '!'
-} marker_type;
+typedef enum { BEGIN = '{', END = '}', MARK = '.' } marker_type;
 
-typedef struct grpc_timer_entry {
+typedef struct gpr_timer_entry {
   gpr_timespec tm;
-  int tag;
   const char *tagstr;
-  marker_type type;
-  void *id;
   const char *file;
   int line;
-} grpc_timer_entry;
+  char type;
+  gpr_uint8 important;
+} gpr_timer_entry;
 
-#define MAX_COUNT (1024 * 1024 / sizeof(grpc_timer_entry))
+#define MAX_COUNT (1024 * 1024 / sizeof(gpr_timer_entry))
 
-static __thread grpc_timer_entry log[MAX_COUNT];
-static __thread int count;
+static __thread gpr_timer_entry g_log[MAX_COUNT];
+static __thread int g_count;
+static gpr_once g_once_init = GPR_ONCE_INIT;
+static FILE *output_file;
+
+static void close_output() { fclose(output_file); }
+
+static void init_output() {
+  output_file = fopen("latency_trace.txt", "w");
+  GPR_ASSERT(output_file);
+  atexit(close_output);
+}
 
 static void log_report() {
   int i;
-  for (i = 0; i < count; i++) {
-    grpc_timer_entry *entry = &(log[i]);
-    printf("GRPC_LAT_PROF %ld.%09d  %p %c %d(%s) %p %s %d\n", entry->tm.tv_sec,
-           entry->tm.tv_nsec, (void *)(gpr_intptr)gpr_thd_currentid(),
-           entry->type, entry->tag, entry->tagstr, entry->id, entry->file,
-           entry->line);
+  gpr_once_init(&g_once_init, init_output);
+  for (i = 0; i < g_count; i++) {
+    gpr_timer_entry *entry = &(g_log[i]);
+    fprintf(output_file,
+            "{\"t\": %ld.%09d, \"thd\": \"%p\", \"type\": \"%c\", \"tag\": "
+            "\"%s\", \"file\": \"%s\", \"line\": %d, \"imp\": %d}\n",
+            entry->tm.tv_sec, entry->tm.tv_nsec,
+            (void *)(gpr_intptr)gpr_thd_currentid(), entry->type, entry->tagstr,
+            entry->file, entry->line, entry->important);
   }
 
   /* Now clear out the log */
-  count = 0;
+  g_count = 0;
 }
 
-static void grpc_timers_log_add(int tag, const char *tagstr, marker_type type,
-                                void *id, const char *file, int line) {
-  grpc_timer_entry *entry;
+static void gpr_timers_log_add(const char *tagstr, marker_type type,
+                               int important, const char *file, int line) {
+  gpr_timer_entry *entry;
 
   /* TODO (vpai) : Improve concurrency */
-  if (count == MAX_COUNT) {
+  if (g_count == MAX_COUNT) {
     log_report();
   }
 
-  entry = &log[count++];
+  entry = &g_log[g_count++];
 
   entry->tm = gpr_now(GPR_CLOCK_PRECISE);
-  entry->tag = tag;
   entry->tagstr = tagstr;
   entry->type = type;
-  entry->id = id;
   entry->file = file;
   entry->line = line;
+  entry->important = important != 0;
 }
 
 /* Latency profiler API implementation. */
-void grpc_timer_add_mark(int tag, const char *tagstr, void *id,
-                         const char *file, int line) {
-  if (tag < GRPC_PTAG_IGNORE_THRESHOLD) {
-    grpc_timers_log_add(tag, tagstr, MARK, id, file, line);
-  }
+void gpr_timer_add_mark(const char *tagstr, int important, const char *file,
+                        int line) {
+  gpr_timers_log_add(tagstr, MARK, important, file, line);
 }
 
-void grpc_timer_add_important_mark(int tag, const char *tagstr, void *id,
-                                   const char *file, int line) {
-  if (tag < GRPC_PTAG_IGNORE_THRESHOLD) {
-    grpc_timers_log_add(tag, tagstr, IMPORTANT, id, file, line);
-  }
+void gpr_timer_begin(const char *tagstr, int important, const char *file,
+                     int line) {
+  gpr_timers_log_add(tagstr, BEGIN, important, file, line);
 }
 
-void grpc_timer_begin(int tag, const char *tagstr, void *id, const char *file,
-                      int line) {
-  if (tag < GRPC_PTAG_IGNORE_THRESHOLD) {
-    grpc_timers_log_add(tag, tagstr, BEGIN, id, file, line);
-  }
-}
-
-void grpc_timer_end(int tag, const char *tagstr, void *id, const char *file,
-                    int line) {
-  if (tag < GRPC_PTAG_IGNORE_THRESHOLD) {
-    grpc_timers_log_add(tag, tagstr, END, id, file, line);
-  }
+void gpr_timer_end(const char *tagstr, int important, const char *file,
+                   int line) {
+  gpr_timers_log_add(tagstr, END, important, file, line);
 }
 
 /* Basic profiler specific API functions. */
-void grpc_timers_global_init(void) {}
+void gpr_timers_global_init(void) {}
 
-void grpc_timers_global_destroy(void) {}
+void gpr_timers_global_destroy(void) {}
 
 #else  /* !GRPC_BASIC_PROFILER */
-void grpc_timers_global_init(void) {}
+void gpr_timers_global_init(void) {}
 
-void grpc_timers_global_destroy(void) {}
+void gpr_timers_global_destroy(void) {}
 #endif /* GRPC_BASIC_PROFILER */

diff --git a/src/core/profiling/stap_timers.c b/src/core/profiling/stap_timers.c
index 6868a67..efcd1af 100644
--- a/src/core/profiling/stap_timers.c
+++ b/src/core/profiling/stap_timers.c

@@ -42,23 +42,23 @@
 #include "src/core/profiling/stap_probes.h"
 
 /* Latency profiler API implementation. */
-void grpc_timer_add_mark(int tag, const char *tagstr, void *id,
-                         const char *file, int line) {
+void gpr_timer_add_mark(int tag, const char *tagstr, void *id, const char *file,
+                        int line) {
   _STAP_ADD_MARK(tag);
 }
 
-void grpc_timer_add_important_mark(int tag, const char *tagstr, void *id,
-                                   const char *file, int line) {
+void gpr_timer_add_important_mark(int tag, const char *tagstr, void *id,
+                                  const char *file, int line) {
   _STAP_ADD_IMPORTANT_MARK(tag);
 }
 
-void grpc_timer_begin(int tag, const char *tagstr, void *id, const char *file,
-                      int line) {
+void gpr_timer_begin(int tag, const char *tagstr, void *id, const char *file,
+                     int line) {
   _STAP_TIMING_NS_BEGIN(tag);
 }
 
-void grpc_timer_end(int tag, const char *tagstr, void *id, const char *file,
-                    int line) {
+void gpr_timer_end(int tag, const char *tagstr, void *id, const char *file,
+                   int line) {
   _STAP_TIMING_NS_END(tag);
 }
 

diff --git a/src/core/profiling/timers.h b/src/core/profiling/timers.h
index a705204..0d112e7 100644
--- a/src/core/profiling/timers.h
+++ b/src/core/profiling/timers.h

@@ -38,65 +38,28 @@
 extern "C" {
 #endif
 
-void grpc_timers_global_init(void);
-void grpc_timers_global_destroy(void);
+void gpr_timers_global_init(void);
+void gpr_timers_global_destroy(void);
 
-void grpc_timer_add_mark(int tag, const char *tagstr, void *id,
-                         const char *file, int line);
-void grpc_timer_add_important_mark(int tag, const char *tagstr, void *id,
-                                   const char *file, int line);
-void grpc_timer_begin(int tag, const char *tagstr, void *id, const char *file,
-                      int line);
-void grpc_timer_end(int tag, const char *tagstr, void *id, const char *file,
-                    int line);
-
-enum grpc_profiling_tags {
-  /* Any GRPC_PTAG_* >= than the threshold won't generate any profiling mark. */
-  GRPC_PTAG_IGNORE_THRESHOLD = 1000000,
-
-  /* Re. Protos. */
-  GRPC_PTAG_PROTO_SERIALIZE = 100 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_PROTO_DESERIALIZE = 101 + GRPC_PTAG_IGNORE_THRESHOLD,
-
-  /* Re. sockets. */
-  GRPC_PTAG_HANDLE_READ = 200 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_SENDMSG = 201 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_RECVMSG = 202 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_POLL_FINISHED = 203 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_TCP_CB_WRITE = 204 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_TCP_WRITE = 205 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_CALL_ON_DONE_RECV = 206 + GRPC_PTAG_IGNORE_THRESHOLD,
-
-  /* C++ */
-  GRPC_PTAG_CPP_CALL_CREATED = 300 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_CPP_PERFORM_OPS = 301 + GRPC_PTAG_IGNORE_THRESHOLD,
-
-  /* Transports */
-  GRPC_PTAG_HTTP2_UNLOCK = 401 + GRPC_PTAG_IGNORE_THRESHOLD,
-  GRPC_PTAG_HTTP2_UNLOCK_CLEANUP = 402 + GRPC_PTAG_IGNORE_THRESHOLD,
-
-  /* > 1024 Unassigned reserved. For any miscellaneous use.
-   * Use addition to generate tags from this base or take advantage of the 10
-   * zero'd bits for OR-ing. */
-  GRPC_PTAG_OTHER_BASE = 1024
-};
+void gpr_timer_add_mark(const char *tagstr, int important, const char *file,
+                        int line);
+void gpr_timer_begin(const char *tagstr, int important, const char *file,
+                     int line);
+void gpr_timer_end(const char *tagstr, int important, const char *file,
+                   int line);
 
 #if !(defined(GRPC_STAP_PROFILER) + defined(GRPC_BASIC_PROFILER))
 /* No profiling. No-op all the things. */
-#define GRPC_TIMER_MARK(tag, id) \
-  do {                           \
+#define GPR_TIMER_MARK(tag, important) \
+  do {                                 \
   } while (0)
 
-#define GRPC_TIMER_IMPORTANT_MARK(tag, id) \
-  do {                                     \
+#define GPR_TIMER_BEGIN(tag, important) \
+  do {                                  \
   } while (0)
 
-#define GRPC_TIMER_BEGIN(tag, id) \
-  do {                            \
-  } while (0)
-
-#define GRPC_TIMER_END(tag, id) \
-  do {                          \
+#define GPR_TIMER_END(tag, important) \
+  do {                                \
   } while (0)
 
 #else /* at least one profiler requested... */
@@ -106,28 +69,14 @@
 #endif
 
 /* Generic profiling interface. */
-#define GRPC_TIMER_MARK(tag, id)                                         \
-  if (tag < GRPC_PTAG_IGNORE_THRESHOLD) {                                \
-    grpc_timer_add_mark(tag, #tag, ((void *)(gpr_intptr)(id)), __FILE__, \
-                        __LINE__);                                       \
-  }
+#define GPR_TIMER_MARK(tag, important) \
+  gpr_timer_add_mark(tag, important, __FILE__, __LINE__);
 
-#define GRPC_TIMER_IMPORTANT_MARK(tag, id)                               \
-  if (tag < GRPC_PTAG_IGNORE_THRESHOLD) {                                \
-    grpc_timer_add_important_mark(tag, #tag, ((void *)(gpr_intptr)(id)), \
-                                  __FILE__, __LINE__);                   \
-  }
+#define GPR_TIMER_BEGIN(tag, important) \
+  gpr_timer_begin(tag, important, __FILE__, __LINE__);
 
-#define GRPC_TIMER_BEGIN(tag, id)                                     \
-  if (tag < GRPC_PTAG_IGNORE_THRESHOLD) {                             \
-    grpc_timer_begin(tag, #tag, ((void *)(gpr_intptr)(id)), __FILE__, \
-                     __LINE__);                                       \
-  }
-
-#define GRPC_TIMER_END(tag, id)                                                \
-  if (tag < GRPC_PTAG_IGNORE_THRESHOLD) {                                      \
-    grpc_timer_end(tag, #tag, ((void *)(gpr_intptr)(id)), __FILE__, __LINE__); \
-  }
+#define GPR_TIMER_END(tag, important) \
+  gpr_timer_end(tag, important, __FILE__, __LINE__);
 
 #ifdef GRPC_STAP_PROFILER
 /* Empty placeholder for now. */
@@ -141,6 +90,28 @@
 
 #ifdef __cplusplus
 }
+
+#if (defined(GRPC_STAP_PROFILER) + defined(GRPC_BASIC_PROFILER))
+namespace grpc {
+class ProfileScope {
+ public:
+  ProfileScope(const char *desc, bool important) : desc_(desc) {
+    GPR_TIMER_BEGIN(desc_, important ? 1 : 0);
+  }
+  ~ProfileScope() { GPR_TIMER_END(desc_, 0); }
+
+ private:
+  const char *const desc_;
+};
+}
+
+#define GPR_TIMER_SCOPE(tag, important) \
+  ::grpc::ProfileScope _profile_scope_##__LINE__((tag), (important))
+#else
+#define GPR_TIMER_SCOPE(tag, important) \
+  do {                                  \
+  } while (false)
+#endif
 #endif
 
 #endif /* GRPC_CORE_PROFILING_TIMERS_H */

diff --git a/src/core/support/alloc.c b/src/core/support/alloc.c
index d2ed82e..bfcb779 100644
--- a/src/core/support/alloc.c
+++ b/src/core/support/alloc.c

@@ -35,22 +35,32 @@
 
 #include <stdlib.h>
 #include <grpc/support/port_platform.h>
+#include "src/core/profiling/timers.h"
 
 void *gpr_malloc(size_t size) {
-  void *p = malloc(size);
+  void *p;
+  GPR_TIMER_BEGIN("gpr_malloc", 0);
+  p = malloc(size);
   if (!p) {
     abort();
   }
+  GPR_TIMER_END("gpr_malloc", 0);
   return p;
 }
 
-void gpr_free(void *p) { free(p); }
+void gpr_free(void *p) {
+  GPR_TIMER_BEGIN("gpr_free", 0);
+  free(p);
+  GPR_TIMER_END("gpr_free", 0);
+}
 
 void *gpr_realloc(void *p, size_t size) {
+  GPR_TIMER_BEGIN("gpr_realloc", 0);
   p = realloc(p, size);
   if (!p) {
     abort();
   }
+  GPR_TIMER_END("gpr_realloc", 0);
   return p;
 }
 

diff --git a/src/core/support/sync_posix.c b/src/core/support/sync_posix.c
index 91c3098..39c96fe 100644
--- a/src/core/support/sync_posix.c
+++ b/src/core/support/sync_posix.c

@@ -40,14 +40,23 @@
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
+#include "src/core/profiling/timers.h"
 
 void gpr_mu_init(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_init(mu, NULL) == 0); }
 
 void gpr_mu_destroy(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_destroy(mu) == 0); }
 
-void gpr_mu_lock(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_lock(mu) == 0); }
+void gpr_mu_lock(gpr_mu* mu) {
+  GPR_TIMER_BEGIN("gpr_mu_lock", 0);
+  GPR_ASSERT(pthread_mutex_lock(mu) == 0);
+  GPR_TIMER_END("gpr_mu_lock", 0);
+}
 
-void gpr_mu_unlock(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_unlock(mu) == 0); }
+void gpr_mu_unlock(gpr_mu* mu) {
+  GPR_TIMER_BEGIN("gpr_mu_unlock", 0);
+  GPR_ASSERT(pthread_mutex_unlock(mu) == 0);
+  GPR_TIMER_END("gpr_mu_unlock", 0);
+}
 
 int gpr_mu_trylock(gpr_mu* mu) {
   int err = pthread_mutex_trylock(mu);

diff --git a/src/core/support/time_posix.c b/src/core/support/time_posix.c
index 78f2c2b..02cfca8 100644
--- a/src/core/support/time_posix.c
+++ b/src/core/support/time_posix.c

@@ -63,7 +63,7 @@
 /** maps gpr_clock_type --> clockid_t for clock_gettime */
 static clockid_t clockid_for_gpr_clock[] = {CLOCK_MONOTONIC, CLOCK_REALTIME};
 
-void gpr_time_init(void) {}
+void gpr_time_init(void) { gpr_precise_clock_init(); }
 
 gpr_timespec gpr_now(gpr_clock_type clock_type) {
   struct timespec now;
@@ -89,6 +89,7 @@
 
 void gpr_time_init(void) {
   mach_timebase_info_data_t tb = {0, 1};
+  gpr_precise_clock_init();
   mach_timebase_info(&tb);
   g_time_scale = tb.numer;
   g_time_scale /= tb.denom;

diff --git a/src/core/support/time_precise.c b/src/core/support/time_precise.c
new file mode 100644
index 0000000..b37517e
--- /dev/null
+++ b/src/core/support/time_precise.c

@@ -0,0 +1,89 @@
+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <grpc/support/log.h>
+#include <grpc/support/time.h>
+#include <stdio.h>
+
+#ifdef GRPC_TIMERS_RDTSC
+#if defined(__i386__)
+static void gpr_get_cycle_counter(long long int *clk) {
+  long long int ret;
+  __asm__ volatile("rdtsc" : "=A"(ret));
+  *clk = ret;
+}
+
+// ----------------------------------------------------------------
+#elif defined(__x86_64__) || defined(__amd64__)
+static void gpr_get_cycle_counter(long long int *clk) {
+  unsigned long long low, high;
+  __asm__ volatile("rdtsc" : "=a"(low), "=d"(high));
+  *clk = (long long)(high << 32) | (long long)low;
+}
+#endif
+
+static double cycles_per_second = 0;
+static long long int start_cycle;
+void gpr_precise_clock_init(void) {
+  time_t start;
+  long long end_cycle;
+  gpr_log(GPR_DEBUG, "Calibrating timers");
+  start = time(NULL);
+  while (time(NULL) == start)
+    ;
+  gpr_get_cycle_counter(&start_cycle);
+  while (time(NULL) <= start + 10)
+    ;
+  gpr_get_cycle_counter(&end_cycle);
+  cycles_per_second = (double)(end_cycle - start_cycle) / 10.0;
+  gpr_log(GPR_DEBUG, "... cycles_per_second = %f\n", cycles_per_second);
+}
+
+void gpr_precise_clock_now(gpr_timespec *clk) {
+  long long int counter;
+  double secs;
+  gpr_get_cycle_counter(&counter);
+  secs = (double)(counter - start_cycle) / cycles_per_second;
+  clk->clock_type = GPR_CLOCK_PRECISE;
+  clk->tv_sec = (time_t)secs;
+  clk->tv_nsec = (int)(1e9 * (secs - (double)clk->tv_sec));
+}
+
+#else  /* GRPC_TIMERS_RDTSC */
+void gpr_precise_clock_init(void) {}
+
+void gpr_precise_clock_now(gpr_timespec *clk) {
+  *clk = gpr_now(GPR_CLOCK_REALTIME);
+  clk->clock_type = GPR_CLOCK_PRECISE;
+}
+#endif /* GRPC_TIMERS_RDTSC */

diff --git a/src/core/support/time_precise.h b/src/core/support/time_precise.h
index cd201fa..80c5000 100644
--- a/src/core/support/time_precise.h
+++ b/src/core/support/time_precise.h

@@ -34,60 +34,9 @@
 #ifndef GRPC_CORE_SUPPORT_TIME_PRECISE_H_
 #define GRPC_CORE_SUPPORT_TIME_PRECISE_H_
 
-#include <grpc/support/sync.h>
 #include <grpc/support/time.h>
-#include <stdio.h>
 
-#ifdef GRPC_TIMERS_RDTSC
-#if defined(__i386__)
-static void gpr_get_cycle_counter(long long int *clk) {
-  long long int ret;
-  __asm__ volatile("rdtsc" : "=A"(ret));
-  *clk = ret;
-}
-
-// ----------------------------------------------------------------
-#elif defined(__x86_64__) || defined(__amd64__)
-static void gpr_get_cycle_counter(long long int *clk) {
-  unsigned long long low, high;
-  __asm__ volatile("rdtsc" : "=a"(low), "=d"(high));
-  *clk = (high << 32) | low;
-}
-#endif
-
-static gpr_once precise_clock_init = GPR_ONCE_INIT;
-static long long cycles_per_second = 0;
-static void gpr_precise_clock_init() {
-  time_t start = time(NULL);
-  gpr_precise_clock start_cycle;
-  gpr_precise_clock end_cycle;
-  while (time(NULL) == start)
-    ;
-  gpr_get_cycle_counter(&start_cycle);
-  while (time(NULL) == start + 1)
-    ;
-  gpr_get_cycle_counter(&end_cycle);
-  cycles_per_second = end_cycle - start_cycle;
-}
-
-static double grpc_precise_clock_scaling_factor() {
-  gpr_once_init(&precise_clock_init, grpc_precise_clock_init);
-  return 1e6 / cycles_per_second;
-}
-
-static void gpr_precise_clock_now(gpr_timespec *clk) {
-  long long int counter;
-  gpr_get_cycle_counter(&counter);
-  clk->clock = GPR_CLOCK_REALTIME;
-  clk->tv_sec = counter / cycles_per_second;
-  clk->tv_nsec = counter % cycles_per_second;
-}
-
-#else  /* GRPC_TIMERS_RDTSC */
-static void gpr_precise_clock_now(gpr_timespec *clk) {
-  *clk = gpr_now(GPR_CLOCK_REALTIME);
-  clk->clock_type = GPR_CLOCK_PRECISE;
-}
-#endif /* GRPC_TIMERS_RDTSC */
+void gpr_precise_clock_init(void);
+void gpr_precise_clock_now(gpr_timespec *clk);
 
 #endif /* GRPC_CORE_SUPPORT_TIME_PRECISE_ */

diff --git a/src/core/surface/call.c b/src/core/surface/call.c
index c963d64..1f8ffd8 100644
--- a/src/core/surface/call.c
+++ b/src/core/surface/call.c

@@ -306,8 +306,9 @@
   grpc_transport_stream_op *initial_op_ptr = NULL;
   grpc_channel_stack *channel_stack = grpc_channel_get_channel_stack(channel);
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  grpc_call *call =
-      gpr_malloc(sizeof(grpc_call) + channel_stack->call_stack_size);
+  grpc_call *call;
+  GPR_TIMER_BEGIN("grpc_call_create", 0);
+  call = gpr_malloc(sizeof(grpc_call) + channel_stack->call_stack_size);
   memset(call, 0, sizeof(grpc_call));
   gpr_mu_init(&call->mu);
   gpr_mu_init(&call->completion_mu);
@@ -401,6 +402,7 @@
     set_deadline_alarm(&exec_ctx, call, send_deadline);
   }
   grpc_exec_ctx_finish(&exec_ctx);
+  GPR_TIMER_END("grpc_call_create", 0);
   return call;
 }
 
@@ -461,6 +463,7 @@
 static void destroy_call(grpc_exec_ctx *exec_ctx, grpc_call *call) {
   size_t i;
   grpc_call *c = call;
+  GPR_TIMER_BEGIN("destroy_call", 0);
   grpc_call_stack_destroy(exec_ctx, CALL_STACK_FROM_CALL(c));
   GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, c->channel, "call");
   gpr_mu_destroy(&c->mu);
@@ -493,6 +496,7 @@
     GRPC_CQ_INTERNAL_UNREF(c->cq, "bind");
   }
   gpr_free(c);
+  GPR_TIMER_END("destroy_call", 0);
 }
 
 #ifdef GRPC_CALL_REF_COUNT_DEBUG
@@ -624,6 +628,8 @@
   const size_t MAX_RECV_PEEK_AHEAD = 65536;
   size_t buffered_bytes;
 
+  GPR_TIMER_BEGIN("unlock", 0);
+
   memset(&op, 0, sizeof(op));
 
   op.cancel_with_status = call->cancel_with_status;
@@ -694,6 +700,8 @@
     unlock(exec_ctx, call);
     GRPC_CALL_INTERNAL_UNREF(exec_ctx, call, "completing");
   }
+
+  GPR_TIMER_END("unlock", 0);
 }
 
 static void get_final_status(grpc_call *call, grpc_ioreq_data out) {
@@ -843,6 +851,7 @@
 
 static void call_on_done_send(grpc_exec_ctx *exec_ctx, void *pc, int success) {
   grpc_call *call = pc;
+  GPR_TIMER_BEGIN("call_on_done_send", 0);
   lock(call);
   if (call->last_send_contains & (1 << GRPC_IOREQ_SEND_INITIAL_METADATA)) {
     finish_ioreq_op(call, GRPC_IOREQ_SEND_INITIAL_METADATA, success);
@@ -866,9 +875,11 @@
   call->sending = 0;
   unlock(exec_ctx, call);
   GRPC_CALL_INTERNAL_UNREF(exec_ctx, call, "sending");
+  GPR_TIMER_END("call_on_done_send", 0);
 }
 
 static void finish_message(grpc_call *call) {
+  GPR_TIMER_BEGIN("finish_message", 0);
   if (call->error_status_set == 0) {
     /* TODO(ctiller): this could be a lot faster if coded directly */
     grpc_byte_buffer *byte_buffer;
@@ -888,6 +899,7 @@
   gpr_slice_buffer_reset_and_unref(&call->incoming_message);
   GPR_ASSERT(call->incoming_message.count == 0);
   call->reading_message = 0;
+  GPR_TIMER_END("finish_message", 0);
 }
 
 static int begin_message(grpc_call *call, grpc_begin_message msg) {
@@ -977,7 +989,7 @@
   grpc_call *child_call;
   grpc_call *next_child_call;
   size_t i;
-  GRPC_TIMER_BEGIN(GRPC_PTAG_CALL_ON_DONE_RECV, 0);
+  GPR_TIMER_BEGIN("call_on_done_recv", 0);
   lock(call);
   call->receiving = 0;
   if (success) {
@@ -987,13 +999,19 @@
         case GRPC_NO_OP:
           break;
         case GRPC_OP_METADATA:
+          GPR_TIMER_BEGIN("recv_metadata", 0);
           recv_metadata(exec_ctx, call, &op->data.metadata);
+          GPR_TIMER_END("recv_metadata", 0);
           break;
         case GRPC_OP_BEGIN_MESSAGE:
+          GPR_TIMER_BEGIN("begin_message", 0);
           success = begin_message(call, op->data.begin_message);
+          GPR_TIMER_END("begin_message", 0);
           break;
         case GRPC_OP_SLICE:
+          GPR_TIMER_BEGIN("add_slice_to_message", 0);
           success = add_slice_to_message(call, op->data.slice);
+          GPR_TIMER_END("add_slice_to_message", 0);
           break;
       }
     }
@@ -1039,7 +1057,7 @@
   unlock(exec_ctx, call);
 
   GRPC_CALL_INTERNAL_UNREF(exec_ctx, call, "receiving");
-  GRPC_TIMER_END(GRPC_PTAG_CALL_ON_DONE_RECV, 0);
+  GPR_TIMER_END("call_on_done_recv", 0);
 }
 
 static int prepare_application_metadata(grpc_call *call, size_t count,
@@ -1517,16 +1535,25 @@
     grpc_mdelem *mdel = l->md;
     grpc_mdstr *key = mdel->key;
     if (key == grpc_channel_get_status_string(call->channel)) {
+      GPR_TIMER_BEGIN("status", 0);
       set_status_code(call, STATUS_FROM_WIRE, decode_status(mdel));
+      GPR_TIMER_END("status", 0);
     } else if (key == grpc_channel_get_message_string(call->channel)) {
+      GPR_TIMER_BEGIN("status-details", 0);
       set_status_details(call, STATUS_FROM_WIRE, GRPC_MDSTR_REF(mdel->value));
+      GPR_TIMER_END("status-details", 0);
     } else if (key ==
                grpc_channel_get_compression_algorithm_string(call->channel)) {
+      GPR_TIMER_BEGIN("compression_algorithm", 0);
       set_compression_algorithm(call, decode_compression(mdel));
+      GPR_TIMER_END("compression_algorithm", 0);
     } else if (key == grpc_channel_get_encodings_accepted_by_peer_string(
                           call->channel)) {
+      GPR_TIMER_BEGIN("encodings_accepted_by_peer", 0);
       set_encodings_accepted_by_peer(call, mdel->value->slice);
+      GPR_TIMER_END("encodings_accepted_by_peer", 0);
     } else {
+      GPR_TIMER_BEGIN("report_up", 0);
       dest = &call->buffered_metadata[is_trailing];
       if (dest->count == dest->capacity) {
         dest->capacity = GPR_MAX(dest->capacity + 8, dest->capacity * 2);
@@ -1547,12 +1574,15 @@
       }
       call->owned_metadata[call->owned_metadata_count++] = mdel;
       l->md = NULL;
+      GPR_TIMER_END("report_up", 0);
     }
   }
   if (gpr_time_cmp(md->deadline, gpr_inf_future(md->deadline.clock_type)) !=
           0 &&
       !call->is_client) {
+    GPR_TIMER_BEGIN("set_deadline_alarm", 0);
     set_deadline_alarm(exec_ctx, call, md->deadline);
+    GPR_TIMER_END("set_deadline_alarm", 0);
   }
   if (!is_trailing) {
     call->read_state = READ_STATE_GOT_INITIAL_METADATA;
@@ -1615,6 +1645,8 @@
   grpc_call_error error;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
 
+  GPR_TIMER_BEGIN("grpc_call_start_batch", 0);
+
   GRPC_API_TRACE(
       "grpc_call_start_batch(call=%p, ops=%p, nops=%lu, tag=%p, reserved=%p)",
       5, (call, ops, (unsigned long)nops, tag, reserved));
@@ -1852,6 +1884,7 @@
                                               finish_func, tag);
 done:
   grpc_exec_ctx_finish(&exec_ctx);
+  GPR_TIMER_END("grpc_call_start_batch", 0);
   return error;
 }
 

diff --git a/src/core/surface/completion_queue.c b/src/core/surface/completion_queue.c
index c435c48..aa90b3f 100644
--- a/src/core/surface/completion_queue.c
+++ b/src/core/surface/completion_queue.c

@@ -43,6 +43,7 @@
 #include "src/core/surface/call.h"
 #include "src/core/surface/event_string.h"
 #include "src/core/surface/surface_trace.h"
+#include "src/core/profiling/timers.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
 #include <grpc/support/log.h>
@@ -154,6 +155,8 @@
   int i;
   grpc_pollset_worker *pluck_worker;
 
+  GPR_TIMER_BEGIN("grpc_cq_end_op", 0);
+
   storage->tag = tag;
   storage->done = done;
   storage->done_arg = done_arg;
@@ -185,6 +188,8 @@
     gpr_mu_unlock(GRPC_POLLSET_MU(&cc->pollset));
     grpc_pollset_shutdown(exec_ctx, &cc->pollset, &cc->pollset_destroy_done);
   }
+
+  GPR_TIMER_END("grpc_cq_end_op", 0);
 }
 
 grpc_event grpc_completion_queue_next(grpc_completion_queue *cc,
@@ -195,6 +200,8 @@
   gpr_timespec now;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
 
+  GPR_TIMER_BEGIN("grpc_completion_queue_next", 0);
+
   GRPC_API_TRACE(
       "grpc_completion_queue_next("
       "cc=%p, "
@@ -241,6 +248,9 @@
   GRPC_SURFACE_TRACE_RETURNED_EVENT(cc, &ret);
   GRPC_CQ_INTERNAL_UNREF(cc, "next");
   grpc_exec_ctx_finish(&exec_ctx);
+
+  GPR_TIMER_END("grpc_completion_queue_next", 0);
+
   return ret;
 }
 
@@ -278,6 +288,8 @@
   int first_loop = 1;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
 
+  GPR_TIMER_BEGIN("grpc_completion_queue_pluck", 0);
+
   GRPC_API_TRACE(
       "grpc_completion_queue_pluck("
       "cc=%p, tag=%p, "
@@ -343,6 +355,9 @@
   GRPC_SURFACE_TRACE_RETURNED_EVENT(cc, &ret);
   GRPC_CQ_INTERNAL_UNREF(cc, "pluck");
   grpc_exec_ctx_finish(&exec_ctx);
+
+  GPR_TIMER_END("grpc_completion_queue_pluck", 0);
+
   return ret;
 }
 

diff --git a/src/core/surface/init.c b/src/core/surface/init.c
index 95011ca..715c90a 100644
--- a/src/core/surface/init.c
+++ b/src/core/surface/init.c

@@ -115,7 +115,7 @@
         gpr_log(GPR_ERROR, "Could not initialize census.");
       }
     }
-    grpc_timers_global_init();
+    gpr_timers_global_init();
     for (i = 0; i < g_number_of_plugins; i++) {
       if (g_all_of_the_plugins[i].init != NULL) {
         g_all_of_the_plugins[i].init();
@@ -133,7 +133,7 @@
   if (--g_initializations == 0) {
     grpc_iomgr_shutdown();
     census_shutdown();
-    grpc_timers_global_destroy();
+    gpr_timers_global_destroy();
     grpc_tracer_shutdown();
     grpc_resolver_registry_shutdown();
     for (i = 0; i < g_number_of_plugins; i++) {

diff --git a/src/core/transport/chttp2/parsing.c b/src/core/transport/chttp2/parsing.c
index a0977cc..5d4d8e7 100644
--- a/src/core/transport/chttp2/parsing.c
+++ b/src/core/transport/chttp2/parsing.c

@@ -35,6 +35,7 @@
 
 #include <string.h>
 
+#include "src/core/profiling/timers.h"
 #include "src/core/transport/chttp2/http2_errors.h"
 #include "src/core/transport/chttp2/status_conversion.h"
 #include "src/core/transport/chttp2/timeout_encoding.h"
@@ -68,6 +69,8 @@
   grpc_chttp2_stream_global *stream_global;
   grpc_chttp2_stream_parsing *stream_parsing;
 
+  GPR_TIMER_BEGIN("grpc_chttp2_prepare_to_read", 0);
+
   transport_parsing->next_stream_id = transport_global->next_stream_id;
 
   /* update the parsing view of incoming window */
@@ -89,6 +92,8 @@
       stream_parsing->incoming_window = stream_global->incoming_window;
     }
   }
+
+  GPR_TIMER_END("grpc_chttp2_prepare_to_read", 0);
 }
 
 void grpc_chttp2_publish_reads(

diff --git a/src/core/transport/chttp2/writing.c b/src/core/transport/chttp2/writing.c
index d1c9da6..69ad885 100644
--- a/src/core/transport/chttp2/writing.c
+++ b/src/core/transport/chttp2/writing.c

@@ -37,6 +37,7 @@
 
 #include <grpc/support/log.h>
 
+#include "src/core/profiling/timers.h"
 #include "src/core/transport/chttp2/http2_errors.h"
 
 static void finalize_outbuf(grpc_chttp2_transport_writing *transport_writing);
@@ -180,6 +181,8 @@
 static void finalize_outbuf(grpc_chttp2_transport_writing *transport_writing) {
   grpc_chttp2_stream_writing *stream_writing;
 
+  GPR_TIMER_BEGIN("finalize_outbuf", 0);
+
   while (
       grpc_chttp2_list_pop_writing_stream(transport_writing, &stream_writing)) {
     if (stream_writing->sopb.nops > 0 ||
@@ -208,6 +211,8 @@
     }
     grpc_chttp2_list_add_written_stream(transport_writing, stream_writing);
   }
+
+  GPR_TIMER_END("finalize_outbuf", 0);
 }
 
 void grpc_chttp2_cleanup_writing(

diff --git a/src/core/transport/chttp2_transport.c b/src/core/transport/chttp2_transport.c
index de74379..effc3c4 100644
--- a/src/core/transport/chttp2_transport.c
+++ b/src/core/transport/chttp2_transport.c

@@ -510,6 +510,7 @@
 static void lock(grpc_chttp2_transport *t) { gpr_mu_lock(&t->mu); }
 
 static void unlock(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t) {
+  GPR_TIMER_BEGIN("unlock", 0);
   unlock_check_read_write_state(exec_ctx, t);
   if (!t->writing_active && !t->closed &&
       grpc_chttp2_unlocking_check_writes(&t->global, &t->writing)) {
@@ -520,6 +521,7 @@
   }
 
   gpr_mu_unlock(&t->mu);
+  GPR_TIMER_END("unlock", 0);
 }
 
 /*
@@ -546,6 +548,8 @@
   grpc_chttp2_transport_writing *transport_writing = transport_writing_ptr;
   grpc_chttp2_transport *t = TRANSPORT_FROM_WRITING(transport_writing);
 
+  GPR_TIMER_BEGIN("grpc_chttp2_terminate_writing", 0);
+
   lock(t);
 
   allow_endpoint_shutdown_locked(exec_ctx, t);
@@ -567,12 +571,16 @@
   unlock(exec_ctx, t);
 
   UNREF_TRANSPORT(exec_ctx, t, "writing");
+
+  GPR_TIMER_END("grpc_chttp2_terminate_writing", 0);
 }
 
 static void writing_action(grpc_exec_ctx *exec_ctx, void *gt,
                            int iomgr_success_ignored) {
   grpc_chttp2_transport *t = gt;
+  GPR_TIMER_BEGIN("writing_action", 0);
   grpc_chttp2_perform_writes(exec_ctx, &t->writing, t->ep);
+  GPR_TIMER_END("writing_action", 0);
 }
 
 void grpc_chttp2_add_incoming_goaway(
@@ -642,6 +650,7 @@
 static void perform_stream_op_locked(
     grpc_exec_ctx *exec_ctx, grpc_chttp2_transport_global *transport_global,
     grpc_chttp2_stream_global *stream_global, grpc_transport_stream_op *op) {
+  GPR_TIMER_BEGIN("perform_stream_op_locked", 0);
   if (op->cancel_with_status != GRPC_STATUS_OK) {
     cancel_from_api(transport_global, stream_global, op->cancel_with_status);
   }
@@ -713,6 +722,7 @@
   }
 
   grpc_exec_ctx_enqueue(exec_ctx, op->on_consumed, 1);
+  GPR_TIMER_END("perform_stream_op_locked", 0);
 }
 
 static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt,
@@ -1103,6 +1113,8 @@
   int keep_reading = 0;
   grpc_chttp2_transport *t = tp;
 
+  GPR_TIMER_BEGIN("recv_data", 0);
+
   lock(t);
   i = 0;
   GPR_ASSERT(!t->parsing_active);
@@ -1113,11 +1125,13 @@
                                      &t->parsing_stream_map);
     grpc_chttp2_prepare_to_read(&t->global, &t->parsing);
     gpr_mu_unlock(&t->mu);
+    GPR_TIMER_BEGIN("recv_data.parse", 0);
     for (; i < t->read_buffer.count &&
                grpc_chttp2_perform_read(exec_ctx, &t->parsing,
                                         t->read_buffer.slices[i]);
          i++)
       ;
+    GPR_TIMER_END("recv_data.parse", 0);
     gpr_mu_lock(&t->mu);
     if (i != t->read_buffer.count) {
       drop_connection(exec_ctx, t);
@@ -1154,6 +1168,8 @@
   } else {
     UNREF_TRANSPORT(exec_ctx, t, "recv_data");
   }
+
+  GPR_TIMER_END("recv_data", 0);
 }
 
 /*

diff --git a/src/core/transport/stream_op.c b/src/core/transport/stream_op.c
index 1cb2bd7..6493e77 100644
--- a/src/core/transport/stream_op.c
+++ b/src/core/transport/stream_op.c

@@ -38,6 +38,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
+#include "src/core/profiling/timers.h"
+
 /* Exponential growth function: Given x, return a larger x.
    Currently we grow by 1.5 times upon reallocation. */
 #define GROW(x) (3 * (x) / 2)
@@ -300,6 +302,8 @@
   grpc_linked_mdelem *l;
   grpc_linked_mdelem *next;
 
+  GPR_TIMER_BEGIN("grpc_metadata_batch_filter", 0);
+
   assert_valid_list(&batch->list);
   assert_valid_list(&batch->garbage);
   for (l = batch->list.head; l; l = next) {
@@ -328,4 +332,6 @@
   }
   assert_valid_list(&batch->list);
   assert_valid_list(&batch->garbage);
+
+  GPR_TIMER_END("grpc_metadata_batch_filter", 0);
 }

diff --git a/src/core/tsi/fake_transport_security.c b/src/core/tsi/fake_transport_security.c
index a40268a..99e28ab 100644
--- a/src/core/tsi/fake_transport_security.c
+++ b/src/core/tsi/fake_transport_security.c

@@ -121,7 +121,7 @@
   buf[3] = (unsigned char)((value >> 24) & 0xFF);
   buf[2] = (unsigned char)((value >> 16) & 0xFF);
   buf[1] = (unsigned char)((value >> 8) & 0xFF);
-  buf[0] = (unsigned char)((value) & 0xFF);
+  buf[0] = (unsigned char)((value)&0xFF);
 }
 
 static void tsi_fake_frame_reset(tsi_fake_frame *frame, int needs_draining) {

diff --git a/src/cpp/client/channel.cc b/src/cpp/client/channel.cc
index dc8e304..c7974d6 100644
--- a/src/cpp/client/channel.cc
+++ b/src/cpp/client/channel.cc

@@ -78,7 +78,6 @@
                                       context->raw_deadline(), nullptr);
   }
   grpc_census_call_set_context(c_call, context->census_context());
-  GRPC_TIMER_MARK(GRPC_PTAG_CPP_CALL_CREATED, c_call);
   context->set_call(c_call, shared_from_this());
   return Call(c_call, this, cq);
 }
@@ -87,11 +86,9 @@
   static const size_t MAX_OPS = 8;
   size_t nops = 0;
   grpc_op cops[MAX_OPS];
-  GRPC_TIMER_BEGIN(GRPC_PTAG_CPP_PERFORM_OPS, call->call());
   ops->FillOps(cops, &nops);
   GPR_ASSERT(GRPC_CALL_OK ==
              grpc_call_start_batch(call->call(), cops, nops, ops, nullptr));
-  GRPC_TIMER_END(GRPC_PTAG_CPP_PERFORM_OPS, call->call());
 }
 
 void* Channel::RegisterMethod(const char* method) {

diff --git a/src/cpp/proto/proto_utils.cc b/src/cpp/proto/proto_utils.cc
index 4131fbe..b1330fd 100644
--- a/src/cpp/proto/proto_utils.cc
+++ b/src/cpp/proto/proto_utils.cc

@@ -42,6 +42,8 @@
 #include <grpc/support/port_platform.h>
 #include <grpc++/support/config.h>
 
+#include "src/core/profiling/timers.h"
+
 const int kMaxBufferLength = 8192;
 
 class GrpcBufferWriter GRPC_FINAL
@@ -158,6 +160,7 @@
 
 Status SerializeProto(const grpc::protobuf::Message& msg,
                       grpc_byte_buffer** bp) {
+  GPR_TIMER_SCOPE("SerializeProto", 0);
   int byte_size = msg.ByteSize();
   if (byte_size <= kMaxBufferLength) {
     gpr_slice slice = gpr_slice_malloc(byte_size);
@@ -176,6 +179,7 @@
 
 Status DeserializeProto(grpc_byte_buffer* buffer, grpc::protobuf::Message* msg,
                         int max_message_size) {
+  GPR_TIMER_SCOPE("DeserializeProto", 0);
   if (!buffer) {
     return Status(StatusCode::INTERNAL, "No payload");
   }

diff --git a/src/cpp/server/server.cc b/src/cpp/server/server.cc
index e09744b..f5063a0 100644
--- a/src/cpp/server/server.cc
+++ b/src/cpp/server/server.cc

@@ -540,6 +540,7 @@
 void Server::RunRpc() {
   // Wait for one more incoming rpc.
   bool ok;
+  GPR_TIMER_SCOPE("Server::RunRpc", 0);
   auto* mrd = SyncRequest::Wait(&cq_, &ok);
   if (mrd) {
     ScheduleCallback();
@@ -555,6 +556,7 @@
           mrd->TeardownRequest();
         }
       }
+      GPR_TIMER_SCOPE("cd.Run()", 0);
       cd.Run();
     }
   }

diff --git a/src/csharp/Grpc.Auth/AuthInterceptors.cs b/src/csharp/Grpc.Auth/GoogleAuthInterceptors.cs
similarity index 95%
rename from src/csharp/Grpc.Auth/AuthInterceptors.cs
rename to src/csharp/Grpc.Auth/GoogleAuthInterceptors.cs
index fa92566..1c14c5b 100644
--- a/src/csharp/Grpc.Auth/AuthInterceptors.cs
+++ b/src/csharp/Grpc.Auth/GoogleAuthInterceptors.cs

@@ -41,10 +41,10 @@
 namespace Grpc.Auth
 {
     /// <summary>
-    /// Factory methods to create authorization interceptors.
-    /// <seealso cref="GrpcCredentials"/>
+    /// Factory methods to create authorization interceptors for Google credentials.
+    /// <seealso cref="GoogleGrpcCredentials"/>
     /// </summary>
-    public static class AuthInterceptors
+    public static class GoogleAuthInterceptors
     {
         private const string AuthorizationHeader = "Authorization";
         private const string Schema = "Bearer";

diff --git a/src/csharp/Grpc.Auth/GoogleGrpcCredentials.cs b/src/csharp/Grpc.Auth/GoogleGrpcCredentials.cs
new file mode 100644
index 0000000..a1e7db1
--- /dev/null
+++ b/src/csharp/Grpc.Auth/GoogleGrpcCredentials.cs

@@ -0,0 +1,96 @@
+#region Copyright notice and license
+
+// Copyright 2015, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+using Google.Apis.Auth.OAuth2;
+using Grpc.Core;
+using Grpc.Core.Utils;
+
+namespace Grpc.Auth
+{
+    /// <summary>
+    /// Factory/extension methods to create instances of <see cref="ChannelCredentials"/> and <see cref="CallCredentials"/> classes
+    /// based on credential objects originating from Google auth library.
+    /// </summary>
+    public static class GoogleGrpcCredentials
+    {
+        /// <summary>
+        /// Retrieves an instance of Google's Application Default Credentials using
+        /// <c>GoogleCredential.GetApplicationDefaultAsync()</c> and converts them
+        /// into a gRPC <see cref="ChannelCredentials"/> that use the default SSL credentials.
+        /// </summary>
+        /// <returns>The <c>ChannelCredentials</c> instance.</returns>
+        public static async Task<ChannelCredentials> GetApplicationDefaultAsync()
+        {
+            var googleCredential = await GoogleCredential.GetApplicationDefaultAsync().ConfigureAwait(false);
+            return googleCredential.ToChannelCredentials();
+        }
+
+        /// <summary>
+        /// Creates an instance of <see cref="CallCredentials"/> that will use given access token to authenticate
+        /// with a gRPC service.
+        /// </summary>
+        /// <param name="accessToken">OAuth2 access token.</param>
+        /// /// <returns>The <c>MetadataCredentials</c> instance.</returns>
+        public static CallCredentials FromAccessToken(string accessToken)
+        {
+            return CallCredentials.FromInterceptor(GoogleAuthInterceptors.FromAccessToken(accessToken));
+        }
+
+        /// <summary>
+        /// Converts a <c>ITokenAccess</c> (e.g. <c>GoogleCredential</c>) object
+        /// into a gRPC <see cref="CallCredentials"/> object.
+        /// </summary>
+        /// <param name="credential">The credential to use to obtain access tokens.</param>
+        /// <returns>The <c>CallCredentials</c> instance.</returns>
+        public static CallCredentials ToCallCredentials(this ITokenAccess credential)
+        {
+            return CallCredentials.FromInterceptor(GoogleAuthInterceptors.FromCredential(credential));
+        }
+
+        /// <summary>
+        /// Converts a <c>ITokenAccess</c> (e.g. <c>GoogleCredential</c>) object
+        /// into a gRPC <see cref="ChannelCredentials"/> object.
+        /// Default SSL credentials are used.
+        /// </summary>
+        /// <param name="googleCredential">The credential to use to obtain access tokens.</param>
+        /// <returns>>The <c>ChannelCredentials</c> instance.</returns>
+        public static ChannelCredentials ToChannelCredentials(this ITokenAccess googleCredential)
+        {
+            return ChannelCredentials.Create(new SslCredentials(), googleCredential.ToCallCredentials());
+        }
+    }
+}

diff --git a/src/csharp/Grpc.Auth/Grpc.Auth.csproj b/src/csharp/Grpc.Auth/Grpc.Auth.csproj
index 80ab07d..55bde6e 100644
--- a/src/csharp/Grpc.Auth/Grpc.Auth.csproj
+++ b/src/csharp/Grpc.Auth/Grpc.Auth.csproj

@@ -78,9 +78,9 @@
     <Compile Include="..\Grpc.Core\Version.cs">
       <Link>Version.cs</Link>
     </Compile>
-    <Compile Include="GrpcCredentials.cs" />
+    <Compile Include="GoogleGrpcCredentials.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="AuthInterceptors.cs" />
+    <Compile Include="GoogleAuthInterceptors.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <ItemGroup>

diff --git a/src/csharp/Grpc.Auth/GrpcCredentials.cs b/src/csharp/Grpc.Auth/GrpcCredentials.cs
deleted file mode 100644
index d8b1080..0000000
--- a/src/csharp/Grpc.Auth/GrpcCredentials.cs
+++ /dev/null

@@ -1,93 +0,0 @@
-#region Copyright notice and license
-
-// Copyright 2015, Google Inc.
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-// copyright notice, this list of conditions and the following disclaimer
-// in the documentation and/or other materials provided with the
-// distribution.
-//     * Neither the name of Google Inc. nor the names of its
-// contributors may be used to endorse or promote products derived from
-// this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#endregion
-
-using System;
-using System.Threading;
-
-using Google.Apis.Auth.OAuth2;
-using Grpc.Core;
-using Grpc.Core.Utils;
-
-namespace Grpc.Auth
-{
-    /// <summary>
-    /// Factory methods to create instances of <see cref="ChannelCredentials"/> and <see cref="CallCredentials"/> classes.
-    /// </summary>
-    public static class GrpcCredentials
-    {
-        /// <summary>
-        /// Creates a <see cref="MetadataCredentials"/> instance that will obtain access tokens 
-        /// from any credential that implements <c>ITokenAccess</c>. (e.g. <c>GoogleCredential</c>).
-        /// </summary>
-        /// <param name="credential">The credential to use to obtain access tokens.</param>
-        /// <returns>The <c>MetadataCredentials</c> instance.</returns>
-        public static MetadataCredentials Create(ITokenAccess credential)
-        {
-            return new MetadataCredentials(AuthInterceptors.FromCredential(credential));
-        }
-
-        /// <summary>
-        /// Convenience method to create a <see cref="ChannelCredentials"/> instance from
-        /// <c>ITokenAccess</c> credential and <c>SslCredentials</c> instance.
-        /// </summary>
-        /// <param name="credential">The credential to use to obtain access tokens.</param>
-        /// <param name="sslCredentials">The <c>SslCredentials</c> instance.</param>
-        /// <returns>The channel credentials for access token based auth over a secure channel.</returns>
-        public static ChannelCredentials Create(ITokenAccess credential, SslCredentials sslCredentials)
-        {
-            return ChannelCredentials.Create(sslCredentials, Create(credential));
-        }
-
-        /// <summary>
-        /// Creates an instance of <see cref="MetadataCredentials"/> that will use given access token to authenticate
-        /// with a gRPC service.
-        /// </summary>
-        /// <param name="accessToken">OAuth2 access token.</param>
-        /// /// <returns>The <c>MetadataCredentials</c> instance.</returns>
-        public static MetadataCredentials FromAccessToken(string accessToken)
-        {
-            return new MetadataCredentials(AuthInterceptors.FromAccessToken(accessToken));
-        }
-
-        /// <summary>
-        /// Converts a <c>ITokenAccess</c> object into a <see cref="MetadataCredentials"/> object supported
-        /// by gRPC.
-        /// </summary>
-        /// <param name="credential"></param>
-        /// <returns></returns>
-        public static MetadataCredentials ToGrpcCredentials(this ITokenAccess credential)
-        {
-            return GrpcCredentials.Create(credential);
-        }
-    }
-}

diff --git a/src/csharp/Grpc.Core.Tests/CallCredentialsTest.cs b/src/csharp/Grpc.Core.Tests/CallCredentialsTest.cs
index 4519632..82f8819 100644
--- a/src/csharp/Grpc.Core.Tests/CallCredentialsTest.cs
+++ b/src/csharp/Grpc.Core.Tests/CallCredentialsTest.cs

@@ -55,8 +55,8 @@
         public void CallCredentials_ToNativeCredentials()
         {
             var composite = CallCredentials.Compose(
-                new MetadataCredentials(async (uri, m) => { await Task.Delay(1); }),
-                new MetadataCredentials(async (uri, m) => { await Task.Delay(2); }));
+                CallCredentials.FromInterceptor(async (uri, m) => { await Task.Delay(1); }),
+                CallCredentials.FromInterceptor(async (uri, m) => { await Task.Delay(2); }));
             using (var nativeComposite = composite.ToNativeCredentials())
             {
             }

diff --git a/src/csharp/Grpc.Core.Tests/ChannelCredentialsTest.cs b/src/csharp/Grpc.Core.Tests/ChannelCredentialsTest.cs
index 489bf38..d5315ed 100644
--- a/src/csharp/Grpc.Core.Tests/ChannelCredentialsTest.cs
+++ b/src/csharp/Grpc.Core.Tests/ChannelCredentialsTest.cs

@@ -63,11 +63,5 @@
             // forbid composing non-composable
             Assert.Throws(typeof(ArgumentException), () => ChannelCredentials.Create(new FakeChannelCredentials(false), new FakeCallCredentials()));
         }
-
-        [Test]
-        public void ChannelCredentials_CreateWrapped()
-        {
-            ChannelCredentials.Create(new FakeCallCredentials());
-        }
     }
 }

diff --git a/src/csharp/Grpc.Core/CallCredentials.cs b/src/csharp/Grpc.Core/CallCredentials.cs
index 809c9f4..400a982 100644
--- a/src/csharp/Grpc.Core/CallCredentials.cs
+++ b/src/csharp/Grpc.Core/CallCredentials.cs

@@ -41,6 +41,14 @@
 namespace Grpc.Core
 {
     /// <summary>
+    /// Asynchronous authentication interceptor for <see cref="CallCredentials"/>.
+    /// </summary>
+    /// <param name="authUri">URL of a service to which current remote call needs to authenticate</param>
+    /// <param name="metadata">Metadata to populate with entries that will be added to outgoing call's headers.</param>
+    /// <returns></returns>
+    public delegate Task AsyncAuthInterceptor(string authUri, Metadata metadata);
+
+    /// <summary>
     /// Client-side call credentials. Provide authorization with per-call granularity.
     /// </summary>
     public abstract class CallCredentials
@@ -57,6 +65,16 @@
         }
 
         /// <summary>
+        /// Creates a new instance of <c>CallCredentials</c> class from an
+        /// interceptor that can attach metadata to outgoing calls.
+        /// </summary>
+        /// <param name="interceptor">authentication interceptor</param>
+        public static CallCredentials FromInterceptor(AsyncAuthInterceptor interceptor)
+        {
+            return new MetadataCredentials(interceptor);
+        }
+
+        /// <summary>
         /// Creates native object for the credentials.
         /// </summary>
         /// <returns>The native credentials.</returns>
@@ -64,18 +82,10 @@
     }
 
     /// <summary>
-    /// Asynchronous authentication interceptor for <see cref="MetadataCredentials"/>.
-    /// </summary>
-    /// <param name="authUri">URL of a service to which current remote call needs to authenticate</param>
-    /// <param name="metadata">Metadata to populate with entries that will be added to outgoing call's headers.</param>
-    /// <returns></returns>
-    public delegate Task AsyncAuthInterceptor(string authUri, Metadata metadata);
-
-    /// <summary>
     /// Client-side credentials that delegate metadata based auth to an interceptor.
     /// The interceptor is automatically invoked for each remote call that uses <c>MetadataCredentials.</c>
     /// </summary>
-    public class MetadataCredentials : CallCredentials
+    internal sealed class MetadataCredentials : CallCredentials
     {
         readonly AsyncAuthInterceptor interceptor;
 
@@ -85,7 +95,7 @@
         /// <param name="interceptor">authentication interceptor</param>
         public MetadataCredentials(AsyncAuthInterceptor interceptor)
         {
-            this.interceptor = interceptor;
+            this.interceptor = Preconditions.CheckNotNull(interceptor);
         }
 
         internal override CredentialsSafeHandle ToNativeCredentials()

diff --git a/src/csharp/Grpc.Core/ChannelCredentials.cs b/src/csharp/Grpc.Core/ChannelCredentials.cs
index 599674e..9d2bcda 100644
--- a/src/csharp/Grpc.Core/ChannelCredentials.cs
+++ b/src/csharp/Grpc.Core/ChannelCredentials.cs

@@ -72,17 +72,6 @@
         }
 
         /// <summary>
-        /// Creates a new instance of <c>ChannelCredentials</c> by wrapping
-        /// an instance of <c>CallCredentials</c>.
-        /// </summary>
-        /// <param name="callCredentials">Call credentials.</param>
-        /// <returns>The <c>ChannelCredentials</c> wrapping given call credentials.</returns>
-        public static ChannelCredentials Create(CallCredentials callCredentials)
-        {
-            return new WrappedCallCredentials(callCredentials);
-        }
-
-        /// <summary>
         /// Creates native object for the credentials. May return null if insecure channel
         /// should be created.
         /// </summary>
@@ -213,26 +202,4 @@
             }
         }
     }
-
-    /// <summary>
-    /// Credentials wrapping <see cref="CallCredentials"/> as <see cref="ChannelCredentials"/>.
-    /// </summary>
-    internal sealed class WrappedCallCredentials : ChannelCredentials
-    {
-        readonly CallCredentials callCredentials;
-
-        /// <summary>
-        /// Wraps instance of <c>CallCredentials</c> as <c>ChannelCredentials</c>.
-        /// </summary>
-        /// <param name="callCredentials">credentials to wrap</param>
-        public WrappedCallCredentials(CallCredentials callCredentials)
-        {
-            this.callCredentials = Preconditions.CheckNotNull(callCredentials);
-        }
-
-        internal override CredentialsSafeHandle ToNativeCredentials()
-        {
-            return callCredentials.ToNativeCredentials();
-        }
-    }
 }

diff --git a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
index cb50b44..030a098 100644
--- a/src/csharp/Grpc.IntegrationTesting/InteropClient.cs
+++ b/src/csharp/Grpc.IntegrationTesting/InteropClient.cs

@@ -143,14 +143,14 @@
             {
                 var googleCredential = await GoogleCredential.GetApplicationDefaultAsync();
                 Assert.IsTrue(googleCredential.IsCreateScopedRequired);
-                credentials = ChannelCredentials.Create(credentials, googleCredential.ToGrpcCredentials());
+                credentials = ChannelCredentials.Create(credentials, googleCredential.ToCallCredentials());
             }
 
             if (options.TestCase == "compute_engine_creds")
             {
                 var googleCredential = await GoogleCredential.GetApplicationDefaultAsync();
                 Assert.IsFalse(googleCredential.IsCreateScopedRequired);
-                credentials = ChannelCredentials.Create(credentials, googleCredential.ToGrpcCredentials());
+                credentials = ChannelCredentials.Create(credentials, googleCredential.ToCallCredentials());
             }
             return credentials;
         }
@@ -392,7 +392,7 @@
             ITokenAccess credential = (await GoogleCredential.GetApplicationDefaultAsync()).CreateScoped(new[] { oauthScope });
             string oauth2Token = await credential.GetAccessTokenForRequestAsync();
 
-            var credentials = GrpcCredentials.FromAccessToken(oauth2Token);
+            var credentials = GoogleGrpcCredentials.FromAccessToken(oauth2Token);
             var request = new SimpleRequest
             {
                 FillUsername = true,
@@ -412,7 +412,7 @@
             Console.WriteLine("running per_rpc_creds");
             ITokenAccess googleCredential = await GoogleCredential.GetApplicationDefaultAsync();
 
-            var credentials = GrpcCredentials.Create(googleCredential);
+            var credentials = googleCredential.ToCallCredentials();
             var request = new SimpleRequest
             {
                 FillUsername = true,

diff --git a/src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs b/src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs
index 5325b2f..3d56678 100644
--- a/src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs
+++ b/src/csharp/Grpc.IntegrationTesting/MetadataCredentialsTest.cs

@@ -75,7 +75,7 @@
 
             var clientCredentials = ChannelCredentials.Create(
                 new SslCredentials(File.ReadAllText(TestCredentials.ClientCertAuthorityPath)),
-                new MetadataCredentials(asyncAuthInterceptor));
+                CallCredentials.FromInterceptor(asyncAuthInterceptor));
             channel = new Channel(Host, server.Ports.Single().BoundPort, clientCredentials, options);
             client = TestService.NewClient(channel);
         }

diff --git a/test/core/profiling/timers_test.c b/test/core/profiling/timers_test.c
index b79cde6..7070fe4 100644
--- a/test/core/profiling/timers_test.c
+++ b/test/core/profiling/timers_test.c

@@ -54,15 +54,15 @@
       for (j = 0; j < advance; j++) {
         switch (state[i]) {
           case 0:
-            GRPC_TIMER_MARK(STATE_0, i);
+            GPR_TIMER_MARK(STATE_0, i);
             state[i]++;
             break;
           case 1:
-            GRPC_TIMER_MARK(STATE_1, i);
+            GPR_TIMER_MARK(STATE_1, i);
             state[i]++;
             break;
           case 2:
-            GRPC_TIMER_MARK(STATE_2, i);
+            GPR_TIMER_MARK(STATE_2, i);
             state[i]++;
             break;
           case 3:
@@ -76,8 +76,8 @@
 
 int main(int argc, char **argv) {
   grpc_test_init(argc, argv);
-  grpc_timers_global_init();
+  gpr_timers_global_init();
   test_log_events(1000000);
-  grpc_timers_global_destroy();
+  gpr_timers_global_destroy();
   return 0;
 }

diff --git a/test/cpp/qps/client_sync.cc b/test/cpp/qps/client_sync.cc
index beef604..3c33a1c 100644
--- a/test/cpp/qps/client_sync.cc
+++ b/test/cpp/qps/client_sync.cc

@@ -59,6 +59,8 @@
 #include "test/cpp/qps/interarrival.h"
 #include "test/cpp/qps/timer.h"
 
+#include "src/core/profiling/timers.h"
+
 namespace grpc {
 namespace testing {
 
@@ -99,6 +101,7 @@
     WaitToIssue(thread_idx);
     auto* stub = channels_[thread_idx % channels_.size()].get_stub();
     double start = Timer::Now();
+    GPR_TIMER_SCOPE("SynchronousUnaryClient::ThreadFunc", 0);
     grpc::ClientContext context;
     grpc::Status s =
         stub->UnaryCall(&context, request_, &responses_[thread_idx]);
@@ -135,6 +138,7 @@
 
   bool ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE {
     WaitToIssue(thread_idx);
+    GPR_TIMER_SCOPE("SynchronousStreamingClient::ThreadFunc", 0);
     double start = Timer::Now();
     if (stream_[thread_idx]->Write(request_) &&
         stream_[thread_idx]->Read(&responses_[thread_idx])) {

diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index 8133839..5d592c8 100644
--- a/tools/doxygen/Doxyfile.c++
+++ b/tools/doxygen/Doxyfile.c++

@@ -760,8 +760,7 @@
 # spaces.
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = include/grpc++/alarm.h \
-include/grpc++/channel.h \
+INPUT                  = include/grpc++/channel.h \
 include/grpc++/client_context.h \
 include/grpc++/completion_queue.h \
 include/grpc++/create_channel.h \

diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 583c057..bbd1706 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal

@@ -760,8 +760,7 @@
 # spaces.
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = include/grpc++/alarm.h \
-include/grpc++/channel.h \
+INPUT                  = include/grpc++/channel.h \
 include/grpc++/client_context.h \
 include/grpc++/completion_queue.h \
 include/grpc++/create_channel.h \
@@ -824,7 +823,6 @@
 src/cpp/client/credentials.cc \
 src/cpp/client/generic_stub.cc \
 src/cpp/client/insecure_credentials.cc \
-src/cpp/common/alarm.cc \
 src/cpp/common/call.cc \
 src/cpp/common/completion_queue.cc \
 src/cpp/common/rpc_method.cc \

diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 3ac332b..d3be97e 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal

@@ -812,6 +812,9 @@
 src/core/httpcli/format_request.h \
 src/core/httpcli/httpcli.h \
 src/core/httpcli/parser.h \
+src/core/iomgr/alarm.h \
+src/core/iomgr/alarm_heap.h \
+src/core/iomgr/alarm_internal.h \
 src/core/iomgr/closure.h \
 src/core/iomgr/endpoint.h \
 src/core/iomgr/endpoint_pair.h \
@@ -839,9 +842,6 @@
 src/core/iomgr/tcp_server.h \
 src/core/iomgr/tcp_windows.h \
 src/core/iomgr/time_averaged_stats.h \
-src/core/iomgr/timer.h \
-src/core/iomgr/timer_heap.h \
-src/core/iomgr/timer_internal.h \
 src/core/iomgr/udp_server.h \
 src/core/iomgr/wakeup_fd_pipe.h \
 src/core/iomgr/wakeup_fd_posix.h \
@@ -852,7 +852,6 @@
 src/core/json/json_common.h \
 src/core/json/json_reader.h \
 src/core/json/json_writer.h \
-src/core/profiling/timers.h \
 src/core/statistics/census_interface.h \
 src/core/statistics/census_rpc_stats.h \
 src/core/surface/api_trace.h \
@@ -948,6 +947,8 @@
 src/core/httpcli/format_request.c \
 src/core/httpcli/httpcli.c \
 src/core/httpcli/parser.c \
+src/core/iomgr/alarm.c \
+src/core/iomgr/alarm_heap.c \
 src/core/iomgr/closure.c \
 src/core/iomgr/endpoint.c \
 src/core/iomgr/endpoint_pair_posix.c \
@@ -978,8 +979,6 @@
 src/core/iomgr/tcp_server_windows.c \
 src/core/iomgr/tcp_windows.c \
 src/core/iomgr/time_averaged_stats.c \
-src/core/iomgr/timer.c \
-src/core/iomgr/timer_heap.c \
 src/core/iomgr/udp_server.c \
 src/core/iomgr/wakeup_fd_eventfd.c \
 src/core/iomgr/wakeup_fd_nospecial.c \
@@ -991,9 +990,6 @@
 src/core/json/json_reader.c \
 src/core/json/json_string.c \
 src/core/json/json_writer.c \
-src/core/profiling/basic_timers.c \
-src/core/profiling/stap_timers.c \
-src/core/surface/alarm.c \
 src/core/surface/api_trace.c \
 src/core/surface/byte_buffer.c \
 src/core/surface/byte_buffer_queue.c \
@@ -1070,6 +1066,7 @@
 include/grpc/support/tls_msvc.h \
 include/grpc/support/tls_pthread.h \
 include/grpc/support/useful.h \
+src/core/profiling/timers.h \
 src/core/support/block_annotate.h \
 src/core/support/env.h \
 src/core/support/file.h \
@@ -1079,6 +1076,8 @@
 src/core/support/string_win32.h \
 src/core/support/thd_internal.h \
 src/core/support/time_precise.h \
+src/core/profiling/basic_timers.c \
+src/core/profiling/stap_timers.c \
 src/core/support/alloc.c \
 src/core/support/cmdline.c \
 src/core/support/cpu_iphone.c \
@@ -1114,6 +1113,7 @@
 src/core/support/thd_win32.c \
 src/core/support/time.c \
 src/core/support/time_posix.c \
+src/core/support/time_precise.c \
 src/core/support/time_win32.c \
 src/core/support/tls_pthread.c
 

diff --git a/tools/jenkins/run_interop.sh b/tools/jenkins/run_interop.sh
new file mode 100755
index 0000000..14e0756
--- /dev/null
+++ b/tools/jenkins/run_interop.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# This script is invoked by Jenkins and runs interop test suite.
+set -ex
+
+# Enter the gRPC repo root
+cd $(dirname $0)/../..
+
+tools/run_tests/run_interop_tests.py -l all -s all --cloud_to_prod --use_docker -t -j 8 $@ || true

diff --git a/tools/profile_analyzer/profile_analyzer.py b/tools/profile_analyzer/profile_analyzer.py
deleted file mode 100755
index e5e9a28..0000000
--- a/tools/profile_analyzer/profile_analyzer.py
+++ /dev/null

@@ -1,188 +0,0 @@
-#!/usr/bin/env python2.7
-# Copyright 2015, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-"""
-Read GRPC basic profiles, analyze the data.
-
-Usage:
-  bins/basicprof/qps_smoke_test > log
-  cat log | tools/profile_analyzer/profile_analyzer.py
-"""
-
-
-import collections
-import itertools
-import math
-import re
-
-# Create a regex to parse output of the C core basic profiler,
-# as defined in src/core/profiling/basic_timers.c.
-_RE_LINE = re.compile(r'GRPC_LAT_PROF ' +
-                      r'([0-9]+\.[0-9]+) 0x([0-9a-f]+) ([{}.!]) ([0-9]+) ' +
-                      r'([^ ]+) ([^ ]+) ([0-9]+)')
-
-Entry = collections.namedtuple(
-    'Entry',
-    ['time', 'thread', 'type', 'tag', 'id', 'file', 'line'])
-
-
-class ImportantMark(object):
-  def __init__(self, entry, stack):
-    self._entry = entry
-    self._pre_stack = stack
-    self._post_stack = list()
-    self._n = len(stack)  # we'll also compute times to that many closing }s
-
-  @property
-  def entry(self):
-    return self._entry
-
-  @property
-  def max_depth(self):
-    return self._n
-
-  def append_post_entry(self, post_entry):
-    if self._n > 0 and post_entry.thread == self._entry.thread:
-      self._post_stack.append(post_entry)
-      self._n -= 1
-
-  def get_deltas(self):
-    pre_and_post_stacks = itertools.chain(self._pre_stack, self._post_stack)
-    return collections.OrderedDict((stack_entry,
-                                   abs(self._entry.time - stack_entry.time))
-                                   for stack_entry in pre_and_post_stacks)
-
-
-def print_block_statistics(block_times):
-  print '{:<12s}  {:>12s} {:>12s} {:>12s} {:>12s}'.format(
-          'Block tag', '50th p.', '90th p.', '95th p.', '99th p.')
-  for tag, tag_times in sorted(block_times.iteritems()):
-    times = sorted(tag_times)
-    print '{:<12d}: {:>12.3f} {:>12.3f} {:>12.3f} {:>12.3f}'.format(
-            tag, percentile(times, 50), percentile(times, 90),
-            percentile(times, 95), percentile(times, 99))
-  print
-
-def print_grouped_imark_statistics(group_key, imarks_group):
-  values = collections.OrderedDict()
-  for imark in imarks_group:
-    deltas = imark.get_deltas()
-    for relative_entry, time_delta_us in deltas.iteritems():
-      key = '{tag} {type} ({file}:{line})'.format(**relative_entry._asdict())
-      l = values.setdefault(key, list())
-      l.append(time_delta_us)
-
-  print group_key
-  print '{:<50s}  {:>12s} {:>12s} {:>12s} {:>12s}'.format(
-        'Relative mark', '50th p.', '90th p.', '95th p.', '99th p.')
-  for key, time_values in values.iteritems():
-    time_values = sorted(time_values)
-    print '{:<50s}: {:>12.3f} {:>12.3f} {:>12.3f} {:>12.3f}'.format(
-          key, percentile(time_values, 50), percentile(time_values, 90),
-          percentile(time_values, 95), percentile(time_values, 99))
-  print
-
-def percentile(vals, percent):
-  """ Calculates the interpolated percentile given a sorted sequence and a
-  percent (in the usual 0-100 range)."""
-  assert vals, "Empty input sequence."
-  percent /= 100.0
-  k = (len(vals)-1) * percent
-  f = math.floor(k)
-  c = math.ceil(k)
-  if f == c:
-      return vals[int(k)]
-  # else, interpolate
-  d0 = vals[int(f)] * (c-k)
-  d1 = vals[int(c)] * (k-f)
-  return d0 + d1
-
-def entries(f):
-  for line in f:
-    m = _RE_LINE.match(line)
-    if not m: continue
-    yield Entry(time=float(m.group(1)),
-                thread=m.group(2),
-                type=m.group(3),
-                tag=int(m.group(4)),
-                id=m.group(5),
-                file=m.group(6),
-                line=m.group(7))
-
-def main(f):
-  percentiles = (50, 90, 95, 99)
-  threads = collections.defaultdict(lambda: collections.defaultdict(list))
-  times = collections.defaultdict(list)
-  important_marks = collections.defaultdict(list)
-  stack_depth = collections.defaultdict(int)
-  for entry in entries(f):
-    thread = threads[entry.thread]
-    if entry.type == '{':
-      thread[entry.tag].append(entry)
-      stack_depth[entry.thread] += 1
-    if entry.type == '!':
-      # Save a snapshot of the current stack inside a new ImportantMark instance.
-      # Get all entries _for any tag in the thread_.
-      stack = [e for entries_for_tag in thread.itervalues()
-                 for e in entries_for_tag]
-      imark_group_key = '{tag}/{thread}@{file}:{line}'.format(**entry._asdict())
-      important_marks[imark_group_key].append(ImportantMark(entry, stack))
-    elif entry.type == '}':
-      last = thread[entry.tag].pop()
-      times[entry.tag].append(entry.time - last.time)
-      # only access the last "depth" imarks for the tag.
-      depth = stack_depth[entry.thread]
-      for imarks_group in important_marks.itervalues():
-        for imark in imarks_group[-depth:]:
-          # if at a '}' deeper than where the current "imark" was found, ignore.
-          if depth > imark.max_depth: continue
-          imark.append_post_entry(entry)
-      stack_depth[entry.thread] -= 1
-
-  print
-  print 'Block marks:'
-  print '============'
-  print_block_statistics(times)
-
-  print
-  print 'Important marks:'
-  print '================'
-  for group_key, imarks_group in important_marks.iteritems():
-    print_grouped_imark_statistics(group_key, imarks_group)
-
-
-if __name__ == '__main__':
-  # If invoked without arguments, read off sys.stdin. If one argument is given,
-  # take it as a file name and open it for reading.
-  import sys
-  f = sys.stdin
-  if len(sys.argv) == 2:
-    f = open(sys.argv[1], 'r')
-  main(f)

diff --git a/tools/profiling/latency_profile/profile_analyzer.py b/tools/profiling/latency_profile/profile_analyzer.py
new file mode 100755
index 0000000..b12e107
--- /dev/null
+++ b/tools/profiling/latency_profile/profile_analyzer.py

@@ -0,0 +1,231 @@
+#!/usr/bin/env python2.7
+import argparse
+import collections
+import hashlib
+import itertools
+import json
+import math
+import tabulate
+import time
+
+
+SELF_TIME = object()
+TIME_FROM_SCOPE_START = object()
+TIME_TO_SCOPE_END = object()
+TIME_FROM_STACK_START = object()
+TIME_TO_STACK_END = object()
+
+
+argp = argparse.ArgumentParser(description='Process output of basic_prof builds')
+argp.add_argument('--source', default='latency_trace.txt', type=str)
+argp.add_argument('--fmt', choices=tabulate.tabulate_formats, default='simple')
+args = argp.parse_args()
+
+class LineItem(object):
+
+  def __init__(self, line, indent):
+    self.tag = line['tag']
+    self.indent = indent
+    self.start_time = line['t']
+    self.end_time = None
+    self.important = line['imp']
+    self.filename = line['file']
+    self.fileline = line['line']
+    self.times = {}
+
+
+class ScopeBuilder(object):
+
+  def __init__(self, call_stack_builder, line):
+    self.call_stack_builder = call_stack_builder
+    self.indent = len(call_stack_builder.stk)
+    self.top_line = LineItem(line, self.indent)
+    call_stack_builder.lines.append(self.top_line)
+    self.first_child_pos = len(call_stack_builder.lines)
+
+  def mark(self, line):
+    line_item = LineItem(line, self.indent + 1)
+    line_item.end_time = line_item.start_time
+    self.call_stack_builder.lines.append(line_item)
+
+  def finish(self, line):
+    assert line['tag'] == self.top_line.tag, 'expected %s, got %s' % (self.top_line.tag, line['tag'])
+    final_time_stamp = line['t']
+    assert self.top_line.end_time is None
+    self.top_line.end_time = final_time_stamp
+    assert SELF_TIME not in self.top_line.times
+    self.top_line.times[SELF_TIME] = final_time_stamp - self.top_line.start_time
+    for line in self.call_stack_builder.lines[self.first_child_pos:]:
+      if TIME_FROM_SCOPE_START not in line.times:
+        line.times[TIME_FROM_SCOPE_START] = line.start_time - self.top_line.start_time
+        line.times[TIME_TO_SCOPE_END] = final_time_stamp - line.end_time
+
+
+class CallStackBuilder(object):
+
+  def __init__(self):
+    self.stk = []
+    self.signature = hashlib.md5()
+    self.lines = []
+
+  def finish(self):
+    start_time = self.lines[0].start_time
+    end_time = self.lines[0].end_time
+    self.signature = self.signature.hexdigest()
+    for line in self.lines:
+      line.times[TIME_FROM_STACK_START] = line.start_time - start_time
+      line.times[TIME_TO_STACK_END] = end_time - line.end_time
+
+  def add(self, line):
+    line_type = line['type']
+    self.signature.update(line_type)
+    self.signature.update(line['tag'])
+    if line_type == '{':
+      self.stk.append(ScopeBuilder(self, line))
+      return False
+    elif line_type == '}':
+      self.stk.pop().finish(line)
+      if not self.stk:
+        self.finish()
+        return True
+      return False
+    elif line_type == '.' or line_type == '!':
+      self.stk[-1].mark(line)
+      return False
+    else:
+      raise Exception('Unknown line type: \'%s\'' % line_type)
+
+
+class CallStack(object):
+
+  def __init__(self, initial_call_stack_builder):
+    self.count = 1
+    self.signature = initial_call_stack_builder.signature
+    self.lines = initial_call_stack_builder.lines
+    for line in self.lines:
+      for key, val in line.times.items():
+        line.times[key] = [val]
+
+  def add(self, call_stack_builder):
+    assert self.signature == call_stack_builder.signature
+    self.count += 1
+    assert len(self.lines) == len(call_stack_builder.lines)
+    for lsum, line in itertools.izip(self.lines, call_stack_builder.lines):
+      assert lsum.tag == line.tag
+      assert lsum.times.keys() == line.times.keys()
+      for k, lst in lsum.times.iteritems():
+        lst.append(line.times[k])
+
+  def finish(self):
+    for line in self.lines:
+      for lst in line.times.itervalues():
+        lst.sort()
+
+builder = collections.defaultdict(CallStackBuilder)
+call_stacks = collections.defaultdict(CallStack)
+
+lines = 0
+start = time.time()
+with open(args.source) as f:
+  for line in f:
+    lines += 1
+    inf = json.loads(line)
+    thd = inf['thd']
+    cs = builder[thd]
+    if cs.add(inf):
+      if cs.signature in call_stacks:
+        call_stacks[cs.signature].add(cs)
+      else:
+        call_stacks[cs.signature] = CallStack(cs)
+      del builder[thd]
+time_taken = time.time() - start
+
+call_stacks = sorted(call_stacks.values(), key=lambda cs: cs.count, reverse=True)
+total_stacks = 0
+for cs in call_stacks:
+  total_stacks += cs.count
+  cs.finish()
+
+def percentile(N, percent, key=lambda x:x):
+    """
+    Find the percentile of a list of values.
+
+    @parameter N - is a list of values. Note N MUST BE already sorted.
+    @parameter percent - a float value from 0.0 to 1.0.
+    @parameter key - optional key function to compute value from each element of N.
+
+    @return - the percentile of the values
+    """
+    if not N:
+        return None
+    k = (len(N)-1) * percent
+    f = math.floor(k)
+    c = math.ceil(k)
+    if f == c:
+        return key(N[int(k)])
+    d0 = key(N[int(f)]) * (c-k)
+    d1 = key(N[int(c)]) * (k-f)
+    return d0+d1
+
+def tidy_tag(tag):
+  if tag[0:10] == 'GRPC_PTAG_':
+    return tag[10:]
+  return tag
+
+def time_string(values):
+  num_values = len(values)
+  return '%.1f/%.1f/%.1f' % (
+      1e6 * percentile(values, 0.5),
+      1e6 * percentile(values, 0.9),
+      1e6 * percentile(values, 0.99))
+
+def time_format(idx):
+  def ent(line, idx=idx):
+    if idx in line.times:
+      return time_string(line.times[idx])
+    return ''
+  return ent
+
+FORMAT = [
+  ('TAG', lambda line: '..'*line.indent + tidy_tag(line.tag)),
+  ('LOC', lambda line: '%s:%d' % (line.filename[line.filename.rfind('/')+1:], line.fileline)),
+  ('FROM_STACK_START', time_format(TIME_FROM_STACK_START)),
+  ('SELF', time_format(SELF_TIME)),
+  ('TO_STACK_END', time_format(TIME_TO_STACK_END)),
+  ('FROM_SCOPE_START', time_format(TIME_FROM_SCOPE_START)),
+  ('SELF', time_format(SELF_TIME)),
+  ('TO_SCOPE_END', time_format(TIME_TO_SCOPE_END)),
+]
+
+BANNER = {
+    'simple': 'Count: %(count)d',
+    'html': '<h1>Count: %(count)d</h1>'
+}
+
+if args.fmt == 'html':
+  print '<html>'
+  print '<head>'
+  print '<title>Profile Report</title>'
+  print '</head>'
+
+accounted_for = 0
+for cs in call_stacks:
+  if args.fmt in BANNER:
+    print BANNER[args.fmt] % {
+        'count': cs.count,
+    }
+  header, _ = zip(*FORMAT)
+  table = []
+  for line in cs.lines:
+    fields = []
+    for _, fn in FORMAT:
+      fields.append(fn(line))
+    table.append(fields)
+  print tabulate.tabulate(table, header, tablefmt=args.fmt)
+  accounted_for += cs.count
+  if accounted_for > .99 * total_stacks:
+    break
+
+if args.fmt == 'html':
+  print '</html>'
+

diff --git a/tools/profiling/latency_profile/run_latency_profile.sh b/tools/profiling/latency_profile/run_latency_profile.sh
new file mode 100755
index 0000000..41686be
--- /dev/null
+++ b/tools/profiling/latency_profile/run_latency_profile.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+set -ex
+
+cd $(dirname $0)/../../..
+
+BINS="sync_unary_ping_pong_test sync_streaming_ping_pong_test"
+CPUS=`python -c 'import multiprocessing; print multiprocessing.cpu_count()'`
+
+make CONFIG=basicprof -j$CPUS $BINS
+
+mkdir -p reports
+
+echo '<html><head></head><body>' > reports/index.html
+for bin in $BINS
+do
+  bins/basicprof/$bin
+  mv latency_trace.txt $bin.trace
+  echo "<a href='$bin.txt'>$bin</a><br/>" >> reports/index.html
+done
+for bin in $BINS
+do
+  tools/profiling/latency_profile/profile_analyzer.py \
+    --source=$bin.trace --fmt=simple > reports/$bin.txt &
+done
+echo '</body></html>' >> reports/index.html
+
+wait
+

diff --git a/tools/run_tests/post_tests_c.sh b/tools/run_tests/post_tests_c.sh
new file mode 100755
index 0000000..f2f3ce9
--- /dev/null
+++ b/tools/run_tests/post_tests_c.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+set -ex
+
+if [ "$CONFIG" != "gcov" ] ; then exit ; fi
+
+root=$(readlink -f $(dirname $0)/../..)
+out=$root/reports/c_cxx_coverage
+tmp=$(mktemp)
+cd $root
+lcov --capture --directory . --output-file $tmp
+genhtml $tmp --output-directory $out
+rm $tmp

diff --git a/tools/run_tests/run_lcov.sh b/tools/run_tests/run_lcov.sh
index 69b1de6..a28ec13 100755
--- a/tools/run_tests/run_lcov.sh
+++ b/tools/run_tests/run_lcov.sh

@@ -30,10 +30,10 @@
 
 set -ex
 
-out=`realpath ${1:-coverage}`
+out=$(readlink -f ${1:-coverage})
 
-root=`realpath $(dirname $0)/../..`
-tmp=`mktemp`
+root=$(readlink -f $(dirname $0)/../..)
+tmp=$(mktemp)
 cd $root
 tools/run_tests/run_tests.py -c gcov -l c c++ || true
 lcov --capture --directory . --output-file $tmp

diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index e9ae9f4..ff8ad8f 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py

@@ -179,6 +179,12 @@
   def build_steps(self):
     return []
 
+  def post_tests_steps(self):
+    if self.platform == 'windows':
+      return []
+    else:
+      return [['tools/run_tests/post_tests_c.sh']]
+
   def makefile_name(self):
     return 'Makefile'
 
@@ -204,6 +210,9 @@
   def build_steps(self):
     return [['tools/run_tests/build_node.sh']]
 
+  def post_tests_steps(self):
+    return []
+
   def makefile_name(self):
     return 'Makefile'
 
@@ -229,6 +238,9 @@
   def build_steps(self):
     return [['tools/run_tests/build_php.sh']]
 
+  def post_tests_steps(self):
+    return []
+
   def makefile_name(self):
     return 'Makefile'
 
@@ -276,6 +288,9 @@
                        do_newline=True)
     return commands
 
+  def post_tests_steps(self):
+    return []
+
   def makefile_name(self):
     return 'Makefile'
 
@@ -301,6 +316,9 @@
   def build_steps(self):
     return [['tools/run_tests/build_ruby.sh']]
 
+  def post_tests_steps(self):
+    return []
+
   def makefile_name(self):
     return 'Makefile'
 
@@ -349,6 +367,9 @@
     else:
       return [['tools/run_tests/build_csharp.sh']]
 
+  def post_tests_steps(self):
+    return []
+
   def makefile_name(self):
     return 'Makefile'
 
@@ -374,6 +395,9 @@
   def build_steps(self):
     return [['src/objective-c/tests/build_tests.sh']]
 
+  def post_tests_steps(self):
+    return []
+
   def makefile_name(self):
     return 'Makefile'
 
@@ -399,6 +423,9 @@
   def build_steps(self):
     return []
 
+  def post_tests_steps(self):
+    return []
+
   def makefile_name(self):
     return 'Makefile'
 
@@ -637,6 +664,11 @@
                    for l in languages
                    for cmdline in l.build_steps()))
 
+post_tests_steps = list(set(
+                        jobset.JobSpec(cmdline, environ={'CONFIG': cfg})
+                        for cfg in build_configs
+                        for l in languages
+                        for cmdline in l.post_tests_steps()))
 runs_per_test = args.runs_per_test
 forever = args.forever
 
@@ -821,6 +853,10 @@
       tree = ET.ElementTree(root)
       tree.write(xml_report, encoding='UTF-8')
 
+  if not jobset.run(post_tests_steps, maxjobs=1, stop_on_failure=True,
+                    newline_on_success=newline_on_success, travis=travis):
+    return 3
+
   if cache: cache.save()
 
   return 0

diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 66e49e6..32c4903 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json

@@ -10,6 +10,34 @@
     ], 
     "headers": [], 
     "language": "c", 
+    "name": "alarm_heap_test", 
+    "src": [
+      "test/core/iomgr/alarm_heap_test.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "alarm_list_test", 
+    "src": [
+      "test/core/iomgr/alarm_list_test.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
     "name": "alpn_test", 
     "src": [
       "test/core/transport/chttp2/alpn_test.c"
@@ -407,20 +435,6 @@
     ], 
     "headers": [], 
     "language": "c", 
-    "name": "grpc_alarm_test", 
-    "src": [
-      "test/core/surface/alarm_test.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c", 
     "name": "grpc_auth_context_test", 
     "src": [
       "test/core/security/auth_context_test.c"
@@ -963,34 +977,6 @@
     ], 
     "headers": [], 
     "language": "c", 
-    "name": "timer_heap_test", 
-    "src": [
-      "test/core/iomgr/timer_heap_test.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "timer_list_test", 
-    "src": [
-      "test/core/iomgr/timer_list_test.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c", 
     "name": "timers_test", 
     "src": [
       "test/core/profiling/timers_test.c"
@@ -1077,22 +1063,6 @@
     ], 
     "headers": [], 
     "language": "c++", 
-    "name": "alarm_test", 
-    "src": [
-      "test/cpp/common/alarm_test.cc"
-    ]
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc++", 
-      "grpc++_test_util", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c++", 
     "name": "async_end2end_test", 
     "src": [
       "test/cpp/end2end/async_end2end_test.cc"
@@ -12191,6 +12161,7 @@
       "include/grpc/support/tls_msvc.h", 
       "include/grpc/support/tls_pthread.h", 
       "include/grpc/support/useful.h", 
+      "src/core/profiling/timers.h", 
       "src/core/support/block_annotate.h", 
       "src/core/support/env.h", 
       "src/core/support/file.h", 
@@ -12231,6 +12202,9 @@
       "include/grpc/support/tls_msvc.h", 
       "include/grpc/support/tls_pthread.h", 
       "include/grpc/support/useful.h", 
+      "src/core/profiling/basic_timers.c", 
+      "src/core/profiling/stap_timers.c", 
+      "src/core/profiling/timers.h", 
       "src/core/support/alloc.c", 
       "src/core/support/block_annotate.h", 
       "src/core/support/cmdline.c", 
@@ -12274,6 +12248,7 @@
       "src/core/support/thd_win32.c", 
       "src/core/support/time.c", 
       "src/core/support/time_posix.c", 
+      "src/core/support/time_precise.c", 
       "src/core/support/time_precise.h", 
       "src/core/support/time_win32.c", 
       "src/core/support/tls_pthread.c"
@@ -12340,6 +12315,9 @@
       "src/core/httpcli/format_request.h", 
       "src/core/httpcli/httpcli.h", 
       "src/core/httpcli/parser.h", 
+      "src/core/iomgr/alarm.h", 
+      "src/core/iomgr/alarm_heap.h", 
+      "src/core/iomgr/alarm_internal.h", 
       "src/core/iomgr/closure.h", 
       "src/core/iomgr/endpoint.h", 
       "src/core/iomgr/endpoint_pair.h", 
@@ -12367,9 +12345,6 @@
       "src/core/iomgr/tcp_server.h", 
       "src/core/iomgr/tcp_windows.h", 
       "src/core/iomgr/time_averaged_stats.h", 
-      "src/core/iomgr/timer.h", 
-      "src/core/iomgr/timer_heap.h", 
-      "src/core/iomgr/timer_internal.h", 
       "src/core/iomgr/udp_server.h", 
       "src/core/iomgr/wakeup_fd_pipe.h", 
       "src/core/iomgr/wakeup_fd_posix.h", 
@@ -12380,7 +12355,6 @@
       "src/core/json/json_common.h", 
       "src/core/json/json_reader.h", 
       "src/core/json/json_writer.h", 
-      "src/core/profiling/timers.h", 
       "src/core/security/auth_filters.h", 
       "src/core/security/base64.h", 
       "src/core/security/credentials.h", 
@@ -12516,6 +12490,11 @@
       "src/core/httpcli/httpcli_security_connector.c", 
       "src/core/httpcli/parser.c", 
       "src/core/httpcli/parser.h", 
+      "src/core/iomgr/alarm.c", 
+      "src/core/iomgr/alarm.h", 
+      "src/core/iomgr/alarm_heap.c", 
+      "src/core/iomgr/alarm_heap.h", 
+      "src/core/iomgr/alarm_internal.h", 
       "src/core/iomgr/closure.c", 
       "src/core/iomgr/closure.h", 
       "src/core/iomgr/endpoint.c", 
@@ -12573,11 +12552,6 @@
       "src/core/iomgr/tcp_windows.h", 
       "src/core/iomgr/time_averaged_stats.c", 
       "src/core/iomgr/time_averaged_stats.h", 
-      "src/core/iomgr/timer.c", 
-      "src/core/iomgr/timer.h", 
-      "src/core/iomgr/timer_heap.c", 
-      "src/core/iomgr/timer_heap.h", 
-      "src/core/iomgr/timer_internal.h", 
       "src/core/iomgr/udp_server.c", 
       "src/core/iomgr/udp_server.h", 
       "src/core/iomgr/wakeup_fd_eventfd.c", 
@@ -12599,9 +12573,6 @@
       "src/core/json/json_string.c", 
       "src/core/json/json_writer.c", 
       "src/core/json/json_writer.h", 
-      "src/core/profiling/basic_timers.c", 
-      "src/core/profiling/stap_timers.c", 
-      "src/core/profiling/timers.h", 
       "src/core/security/auth_filters.h", 
       "src/core/security/base64.c", 
       "src/core/security/base64.h", 
@@ -12628,7 +12599,6 @@
       "src/core/security/server_secure_chttp2.c", 
       "src/core/statistics/census_interface.h", 
       "src/core/statistics/census_rpc_stats.h", 
-      "src/core/surface/alarm.c", 
       "src/core/surface/api_trace.c", 
       "src/core/surface/api_trace.h", 
       "src/core/surface/byte_buffer.c", 
@@ -12848,6 +12818,9 @@
       "src/core/httpcli/format_request.h", 
       "src/core/httpcli/httpcli.h", 
       "src/core/httpcli/parser.h", 
+      "src/core/iomgr/alarm.h", 
+      "src/core/iomgr/alarm_heap.h", 
+      "src/core/iomgr/alarm_internal.h", 
       "src/core/iomgr/closure.h", 
       "src/core/iomgr/endpoint.h", 
       "src/core/iomgr/endpoint_pair.h", 
@@ -12875,9 +12848,6 @@
       "src/core/iomgr/tcp_server.h", 
       "src/core/iomgr/tcp_windows.h", 
       "src/core/iomgr/time_averaged_stats.h", 
-      "src/core/iomgr/timer.h", 
-      "src/core/iomgr/timer_heap.h", 
-      "src/core/iomgr/timer_internal.h", 
       "src/core/iomgr/udp_server.h", 
       "src/core/iomgr/wakeup_fd_pipe.h", 
       "src/core/iomgr/wakeup_fd_posix.h", 
@@ -12888,7 +12858,6 @@
       "src/core/json/json_common.h", 
       "src/core/json/json_reader.h", 
       "src/core/json/json_writer.h", 
-      "src/core/profiling/timers.h", 
       "src/core/statistics/census_interface.h", 
       "src/core/statistics/census_rpc_stats.h", 
       "src/core/surface/api_trace.h", 
@@ -13009,6 +12978,11 @@
       "src/core/httpcli/httpcli.h", 
       "src/core/httpcli/parser.c", 
       "src/core/httpcli/parser.h", 
+      "src/core/iomgr/alarm.c", 
+      "src/core/iomgr/alarm.h", 
+      "src/core/iomgr/alarm_heap.c", 
+      "src/core/iomgr/alarm_heap.h", 
+      "src/core/iomgr/alarm_internal.h", 
       "src/core/iomgr/closure.c", 
       "src/core/iomgr/closure.h", 
       "src/core/iomgr/endpoint.c", 
@@ -13066,11 +13040,6 @@
       "src/core/iomgr/tcp_windows.h", 
       "src/core/iomgr/time_averaged_stats.c", 
       "src/core/iomgr/time_averaged_stats.h", 
-      "src/core/iomgr/timer.c", 
-      "src/core/iomgr/timer.h", 
-      "src/core/iomgr/timer_heap.c", 
-      "src/core/iomgr/timer_heap.h", 
-      "src/core/iomgr/timer_internal.h", 
       "src/core/iomgr/udp_server.c", 
       "src/core/iomgr/udp_server.h", 
       "src/core/iomgr/wakeup_fd_eventfd.c", 
@@ -13092,12 +13061,8 @@
       "src/core/json/json_string.c", 
       "src/core/json/json_writer.c", 
       "src/core/json/json_writer.h", 
-      "src/core/profiling/basic_timers.c", 
-      "src/core/profiling/stap_timers.c", 
-      "src/core/profiling/timers.h", 
       "src/core/statistics/census_interface.h", 
       "src/core/statistics/census_rpc_stats.h", 
-      "src/core/surface/alarm.c", 
       "src/core/surface/api_trace.c", 
       "src/core/surface/api_trace.h", 
       "src/core/surface/byte_buffer.c", 
@@ -13222,7 +13187,6 @@
       "grpc"
     ], 
     "headers": [
-      "include/grpc++/alarm.h", 
       "include/grpc++/channel.h", 
       "include/grpc++/client_context.h", 
       "include/grpc++/completion_queue.h", 
@@ -13276,7 +13240,6 @@
     "language": "c++", 
     "name": "grpc++", 
     "src": [
-      "include/grpc++/alarm.h", 
       "include/grpc++/channel.h", 
       "include/grpc++/client_context.h", 
       "include/grpc++/completion_queue.h", 
@@ -13330,7 +13293,6 @@
       "src/cpp/client/secure_channel_arguments.cc", 
       "src/cpp/client/secure_credentials.cc", 
       "src/cpp/client/secure_credentials.h", 
-      "src/cpp/common/alarm.cc", 
       "src/cpp/common/auth_property_iterator.cc", 
       "src/cpp/common/call.cc", 
       "src/cpp/common/completion_queue.cc", 
@@ -13409,7 +13371,6 @@
       "grpc_unsecure"
     ], 
     "headers": [
-      "include/grpc++/alarm.h", 
       "include/grpc++/channel.h", 
       "include/grpc++/client_context.h", 
       "include/grpc++/completion_queue.h", 
@@ -13460,7 +13421,6 @@
     "language": "c++", 
     "name": "grpc++_unsecure", 
     "src": [
-      "include/grpc++/alarm.h", 
       "include/grpc++/channel.h", 
       "include/grpc++/client_context.h", 
       "include/grpc++/completion_queue.h", 
@@ -13511,7 +13471,6 @@
       "src/cpp/client/credentials.cc", 
       "src/cpp/client/generic_stub.cc", 
       "src/cpp/client/insecure_credentials.cc", 
-      "src/cpp/common/alarm.cc", 
       "src/cpp/common/call.cc", 
       "src/cpp/common/completion_queue.cc", 
       "src/cpp/common/create_auth_context.h", 

diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 08f2f67..7989f5c 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json

@@ -11,6 +11,42 @@
     "exclude_configs": [], 
     "flaky": false, 
     "language": "c", 
+    "name": "alarm_heap_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "alarm_list_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
     "name": "alpn_test", 
     "platforms": [
       "linux", 
@@ -487,24 +523,6 @@
     "exclude_configs": [], 
     "flaky": false, 
     "language": "c", 
-    "name": "grpc_alarm_test", 
-    "platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ]
-  }, 
-  {
-    "ci_platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ], 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
     "name": "grpc_auth_context_test", 
     "platforms": [
       "linux", 
@@ -1089,42 +1107,6 @@
     "exclude_configs": [], 
     "flaky": false, 
     "language": "c", 
-    "name": "timer_heap_test", 
-    "platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ]
-  }, 
-  {
-    "ci_platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ], 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "timer_list_test", 
-    "platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ]
-  }, 
-  {
-    "ci_platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ], 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
     "name": "timers_test", 
     "platforms": [
       "linux", 
@@ -1227,24 +1209,6 @@
     "exclude_configs": [], 
     "flaky": false, 
     "language": "c++", 
-    "name": "alarm_test", 
-    "platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ]
-  }, 
-  {
-    "ci_platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
-    ], 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c++", 
     "name": "async_end2end_test", 
     "platforms": [
       "linux", 

diff --git a/vsprojects/buildtests_c.sln b/vsprojects/buildtests_c.sln
index c0d8f63..24b51d4 100644
--- a/vsprojects/buildtests_c.sln
+++ b/vsprojects/buildtests_c.sln

@@ -575,6 +575,28 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "alarm_heap_test", "vcxproj\test\alarm_heap_test\alarm_heap_test.vcxproj", "{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "alarm_list_test", "vcxproj\test\alarm_list_test\alarm_list_test.vcxproj", "{E6F27D86-476F-CB60-AC56-ED3A210C0E96}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "alpn_test", "vcxproj\test\alpn_test\alpn_test.vcxproj", "{5BAAE7EA-A972-DD80-F190-29B9E3110BB3}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -823,17 +845,6 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_alarm_test", "vcxproj\test\grpc_alarm_test\grpc_alarm_test.vcxproj", "{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
-		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_auth_context_test", "vcxproj\test\grpc_auth_context_test\grpc_auth_context_test.vcxproj", "{C65A4336-92D6-D6A0-EB86-E3AA425222D0}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -1193,28 +1204,6 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "timer_heap_test", "vcxproj\test\timer_heap_test\timer_heap_test.vcxproj", "{A2110C60-E75A-F76E-205E-1836F86C4D53}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
-		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "timer_list_test", "vcxproj\test\timer_list_test\timer_list_test.vcxproj", "{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
-		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "timers_test", "vcxproj\test\timers_test\timers_test.vcxproj", "{FFE98236-3F4D-2CBA-29FB-D0A7467D2FA5}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -8776,6 +8765,38 @@
 		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|Win32.Build.0 = Release|Win32
 		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|x64.ActiveCfg = Release|x64
 		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|x64.Build.0 = Release|x64
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Debug|Win32.ActiveCfg = Debug|Win32
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Debug|x64.ActiveCfg = Debug|x64
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Release|Win32.ActiveCfg = Release|Win32
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Release|x64.ActiveCfg = Release|x64
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Debug|Win32.Build.0 = Debug|Win32
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Debug|x64.Build.0 = Debug|x64
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Release|Win32.Build.0 = Release|Win32
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Release|x64.Build.0 = Release|x64
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Debug-DLL|x64.Build.0 = Debug|x64
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Release-DLL|Win32.Build.0 = Release|Win32
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Release-DLL|x64.ActiveCfg = Release|x64
+		{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}.Release-DLL|x64.Build.0 = Release|x64
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Debug|Win32.ActiveCfg = Debug|Win32
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Debug|x64.ActiveCfg = Debug|x64
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Release|Win32.ActiveCfg = Release|Win32
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Release|x64.ActiveCfg = Release|x64
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Debug|Win32.Build.0 = Debug|Win32
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Debug|x64.Build.0 = Debug|x64
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Release|Win32.Build.0 = Release|Win32
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Release|x64.Build.0 = Release|x64
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Debug-DLL|x64.Build.0 = Debug|x64
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Release-DLL|Win32.Build.0 = Release|Win32
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Release-DLL|x64.ActiveCfg = Release|x64
+		{E6F27D86-476F-CB60-AC56-ED3A210C0E96}.Release-DLL|x64.Build.0 = Release|x64
 		{5BAAE7EA-A972-DD80-F190-29B9E3110BB3}.Debug|Win32.ActiveCfg = Debug|Win32
 		{5BAAE7EA-A972-DD80-F190-29B9E3110BB3}.Debug|x64.ActiveCfg = Debug|x64
 		{5BAAE7EA-A972-DD80-F190-29B9E3110BB3}.Release|Win32.ActiveCfg = Release|Win32
@@ -9192,22 +9213,6 @@
 		{40B790A8-BB01-9F12-5309-C0BEA97C75BC}.Release-DLL|Win32.Build.0 = Release|Win32
 		{40B790A8-BB01-9F12-5309-C0BEA97C75BC}.Release-DLL|x64.ActiveCfg = Release|x64
 		{40B790A8-BB01-9F12-5309-C0BEA97C75BC}.Release-DLL|x64.Build.0 = Release|x64
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Debug|Win32.ActiveCfg = Debug|Win32
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Debug|x64.ActiveCfg = Debug|x64
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Release|Win32.ActiveCfg = Release|Win32
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Release|x64.ActiveCfg = Release|x64
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Debug|Win32.Build.0 = Debug|Win32
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Debug|x64.Build.0 = Debug|x64
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Release|Win32.Build.0 = Release|Win32
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Release|x64.Build.0 = Release|x64
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Debug-DLL|x64.Build.0 = Debug|x64
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Release-DLL|Win32.Build.0 = Release|Win32
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Release-DLL|x64.ActiveCfg = Release|x64
-		{45AB14B7-333D-86D3-C67E-EA4DD5BFF7E5}.Release-DLL|x64.Build.0 = Release|x64
 		{C65A4336-92D6-D6A0-EB86-E3AA425222D0}.Debug|Win32.ActiveCfg = Debug|Win32
 		{C65A4336-92D6-D6A0-EB86-E3AA425222D0}.Debug|x64.ActiveCfg = Debug|x64
 		{C65A4336-92D6-D6A0-EB86-E3AA425222D0}.Release|Win32.ActiveCfg = Release|Win32
@@ -9736,38 +9741,6 @@
 		{EA073C36-A527-F749-AD4A-243A38B9BFF5}.Release-DLL|Win32.Build.0 = Release|Win32
 		{EA073C36-A527-F749-AD4A-243A38B9BFF5}.Release-DLL|x64.ActiveCfg = Release|x64
 		{EA073C36-A527-F749-AD4A-243A38B9BFF5}.Release-DLL|x64.Build.0 = Release|x64
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Debug|Win32.ActiveCfg = Debug|Win32
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Debug|x64.ActiveCfg = Debug|x64
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Release|Win32.ActiveCfg = Release|Win32
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Release|x64.ActiveCfg = Release|x64
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Debug|Win32.Build.0 = Debug|Win32
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Debug|x64.Build.0 = Debug|x64
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Release|Win32.Build.0 = Release|Win32
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Release|x64.Build.0 = Release|x64
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Debug-DLL|x64.Build.0 = Debug|x64
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Release-DLL|Win32.Build.0 = Release|Win32
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Release-DLL|x64.ActiveCfg = Release|x64
-		{A2110C60-E75A-F76E-205E-1836F86C4D53}.Release-DLL|x64.Build.0 = Release|x64
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Debug|Win32.ActiveCfg = Debug|Win32
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Debug|x64.ActiveCfg = Debug|x64
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Release|Win32.ActiveCfg = Release|Win32
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Release|x64.ActiveCfg = Release|x64
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Debug|Win32.Build.0 = Debug|Win32
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Debug|x64.Build.0 = Debug|x64
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Release|Win32.Build.0 = Release|Win32
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Release|x64.Build.0 = Release|x64
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Debug-DLL|x64.Build.0 = Debug|x64
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Release-DLL|Win32.Build.0 = Release|Win32
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Release-DLL|x64.ActiveCfg = Release|x64
-		{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}.Release-DLL|x64.Build.0 = Release|x64
 		{FFE98236-3F4D-2CBA-29FB-D0A7467D2FA5}.Debug|Win32.ActiveCfg = Debug|Win32
 		{FFE98236-3F4D-2CBA-29FB-D0A7467D2FA5}.Debug|x64.ActiveCfg = Debug|x64
 		{FFE98236-3F4D-2CBA-29FB-D0A7467D2FA5}.Release|Win32.ActiveCfg = Release|Win32

diff --git a/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj b/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj
index 3484d4b..74b0fbf 100644
--- a/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj
+++ b/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj

@@ -237,7 +237,6 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\..\include\grpc++\alarm.h" />
     <ClInclude Include="..\..\..\include\grpc++\channel.h" />
     <ClInclude Include="..\..\..\include\grpc++\client_context.h" />
     <ClInclude Include="..\..\..\include\grpc++\completion_queue.h" />
@@ -306,8 +305,6 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\client\insecure_credentials.cc">
     </ClCompile>
-    <ClCompile Include="..\..\..\src\cpp\common\alarm.cc">
-    </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\call.cc">
     </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\completion_queue.cc">

diff --git a/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj.filters b/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
index 39261b3..96effe2 100644
--- a/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
+++ b/vsprojects/grpc++_unsecure/grpc++_unsecure.vcxproj.filters

@@ -28,9 +28,6 @@
     <ClCompile Include="..\..\..\src\cpp\client\insecure_credentials.cc">
       <Filter>src\cpp\client</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\cpp\common\alarm.cc">
-      <Filter>src\cpp\common</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\call.cc">
       <Filter>src\cpp\common</Filter>
     </ClCompile>
@@ -87,9 +84,6 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\..\include\grpc++\alarm.h">
-      <Filter>include\grpc++</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\include\grpc++\channel.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>

diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj b/vsprojects/vcxproj/gpr/gpr.vcxproj
index 479286f..fa495db 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj

@@ -163,6 +163,7 @@
     <ClInclude Include="..\..\..\include\grpc\support\useful.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\..\src\core\profiling\timers.h" />
     <ClInclude Include="..\..\..\src\core\support\block_annotate.h" />
     <ClInclude Include="..\..\..\src\core\support\env.h" />
     <ClInclude Include="..\..\..\src\core\support\file.h" />
@@ -174,6 +175,10 @@
     <ClInclude Include="..\..\..\src\core\support\time_precise.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\..\..\src\core\profiling\basic_timers.c">
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\profiling\stap_timers.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\support\alloc.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\support\cmdline.c">
@@ -244,6 +249,8 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\support\time_posix.c">
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\support\time_precise.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\support\time_win32.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\support\tls_pthread.c">

diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
index be5bb51..ee03e45 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters

@@ -1,6 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
+    <ClCompile Include="..\..\..\src\core\profiling\basic_timers.c">
+      <Filter>src\core\profiling</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\profiling\stap_timers.c">
+      <Filter>src\core\profiling</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\support\alloc.c">
       <Filter>src\core\support</Filter>
     </ClCompile>
@@ -106,6 +112,9 @@
     <ClCompile Include="..\..\..\src\core\support\time_posix.c">
       <Filter>src\core\support</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\support\time_precise.c">
+      <Filter>src\core\support</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\support\time_win32.c">
       <Filter>src\core\support</Filter>
     </ClCompile>
@@ -197,6 +206,9 @@
     </ClInclude>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\..\src\core\profiling\timers.h">
+      <Filter>src\core\profiling</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\src\core\support\block_annotate.h">
       <Filter>src\core\support</Filter>
     </ClInclude>
@@ -242,6 +254,9 @@
     <Filter Include="src\core">
       <UniqueIdentifier>{c5e1baa7-de77-beb1-9675-942261648f79}</UniqueIdentifier>
     </Filter>
+    <Filter Include="src\core\profiling">
+      <UniqueIdentifier>{93b7086c-8c8a-6bbf-fb14-1f166bf0146a}</UniqueIdentifier>
+    </Filter>
     <Filter Include="src\core\support">
       <UniqueIdentifier>{bb116f2a-ea2a-c233-82da-0c54e3cbfec1}</UniqueIdentifier>
     </Filter>

diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
index da8c51c..9f88c72 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj

@@ -237,7 +237,6 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\..\include\grpc++\alarm.h" />
     <ClInclude Include="..\..\..\include\grpc++\channel.h" />
     <ClInclude Include="..\..\..\include\grpc++\client_context.h" />
     <ClInclude Include="..\..\..\include\grpc++\completion_queue.h" />
@@ -319,8 +318,6 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\client\insecure_credentials.cc">
     </ClCompile>
-    <ClCompile Include="..\..\..\src\cpp\common\alarm.cc">
-    </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\call.cc">
     </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\completion_queue.cc">

diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
index f9a03cb..7d9cd47 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters

@@ -43,9 +43,6 @@
     <ClCompile Include="..\..\..\src\cpp\client\insecure_credentials.cc">
       <Filter>src\cpp\client</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\cpp\common\alarm.cc">
-      <Filter>src\cpp\common</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\call.cc">
       <Filter>src\cpp\common</Filter>
     </ClCompile>
@@ -102,9 +99,6 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\..\include\grpc++\alarm.h">
-      <Filter>include\grpc++</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\include\grpc++\channel.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>

diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
index 3484d4b..74b0fbf 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj

@@ -237,7 +237,6 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\..\include\grpc++\alarm.h" />
     <ClInclude Include="..\..\..\include\grpc++\channel.h" />
     <ClInclude Include="..\..\..\include\grpc++\client_context.h" />
     <ClInclude Include="..\..\..\include\grpc++\completion_queue.h" />
@@ -306,8 +305,6 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\client\insecure_credentials.cc">
     </ClCompile>
-    <ClCompile Include="..\..\..\src\cpp\common\alarm.cc">
-    </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\call.cc">
     </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\completion_queue.cc">

diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
index 39261b3..96effe2 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters

@@ -28,9 +28,6 @@
     <ClCompile Include="..\..\..\src\cpp\client\insecure_credentials.cc">
       <Filter>src\cpp\client</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\cpp\common\alarm.cc">
-      <Filter>src\cpp\common</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\cpp\common\call.cc">
       <Filter>src\cpp\common</Filter>
     </ClCompile>
@@ -87,9 +84,6 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\..\include\grpc++\alarm.h">
-      <Filter>include\grpc++</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\include\grpc++\channel.h">
       <Filter>include\grpc++</Filter>
     </ClInclude>

diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index d9b0b84..23bcd0c 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj

@@ -298,6 +298,9 @@
     <ClInclude Include="..\..\..\src\core\httpcli\format_request.h" />
     <ClInclude Include="..\..\..\src\core\httpcli\httpcli.h" />
     <ClInclude Include="..\..\..\src\core\httpcli\parser.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm_heap.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm_internal.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\closure.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\endpoint.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\endpoint_pair.h" />
@@ -325,9 +328,6 @@
     <ClInclude Include="..\..\..\src\core\iomgr\tcp_server.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\tcp_windows.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\time_averaged_stats.h" />
-    <ClInclude Include="..\..\..\src\core\iomgr\timer.h" />
-    <ClInclude Include="..\..\..\src\core\iomgr\timer_heap.h" />
-    <ClInclude Include="..\..\..\src\core\iomgr\timer_internal.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\udp_server.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_pipe.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_posix.h" />
@@ -338,7 +338,6 @@
     <ClInclude Include="..\..\..\src\core\json\json_common.h" />
     <ClInclude Include="..\..\..\src\core\json\json_reader.h" />
     <ClInclude Include="..\..\..\src\core\json\json_writer.h" />
-    <ClInclude Include="..\..\..\src\core\profiling\timers.h" />
     <ClInclude Include="..\..\..\src\core\statistics\census_interface.h" />
     <ClInclude Include="..\..\..\src\core\statistics\census_rpc_stats.h" />
     <ClInclude Include="..\..\..\src\core\surface\api_trace.h" />
@@ -490,6 +489,10 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\httpcli\parser.c">
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\alarm.c">
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\alarm_heap.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\closure.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\endpoint.c">
@@ -550,10 +553,6 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\time_averaged_stats.c">
     </ClCompile>
-    <ClCompile Include="..\..\..\src\core\iomgr\timer.c">
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\iomgr\timer_heap.c">
-    </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\udp_server.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\wakeup_fd_eventfd.c">
@@ -576,12 +575,6 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\json\json_writer.c">
     </ClCompile>
-    <ClCompile Include="..\..\..\src\core\profiling\basic_timers.c">
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\profiling\stap_timers.c">
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\surface\alarm.c">
-    </ClCompile>
     <ClCompile Include="..\..\..\src\core\surface\api_trace.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\surface\byte_buffer.c">

diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 5a5081e..1cfccf0 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters

@@ -163,6 +163,12 @@
     <ClCompile Include="..\..\..\src\core\httpcli\parser.c">
       <Filter>src\core\httpcli</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\alarm.c">
+      <Filter>src\core\iomgr</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\alarm_heap.c">
+      <Filter>src\core\iomgr</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\closure.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
@@ -253,12 +259,6 @@
     <ClCompile Include="..\..\..\src\core\iomgr\time_averaged_stats.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\core\iomgr\timer.c">
-      <Filter>src\core\iomgr</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\iomgr\timer_heap.c">
-      <Filter>src\core\iomgr</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\udp_server.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
@@ -292,15 +292,6 @@
     <ClCompile Include="..\..\..\src\core\json\json_writer.c">
       <Filter>src\core\json</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\core\profiling\basic_timers.c">
-      <Filter>src\core\profiling</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\profiling\stap_timers.c">
-      <Filter>src\core\profiling</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\surface\alarm.c">
-      <Filter>src\core\surface</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\core\surface\api_trace.c">
       <Filter>src\core\surface</Filter>
     </ClCompile>
@@ -608,6 +599,15 @@
     <ClInclude Include="..\..\..\src\core\httpcli\parser.h">
       <Filter>src\core\httpcli</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm_heap.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm_internal.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\src\core\iomgr\closure.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
@@ -689,15 +689,6 @@
     <ClInclude Include="..\..\..\src\core\iomgr\time_averaged_stats.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\src\core\iomgr\timer.h">
-      <Filter>src\core\iomgr</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\..\src\core\iomgr\timer_heap.h">
-      <Filter>src\core\iomgr</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\..\src\core\iomgr\timer_internal.h">
-      <Filter>src\core\iomgr</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\src\core\iomgr\udp_server.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
@@ -728,9 +719,6 @@
     <ClInclude Include="..\..\..\src\core\json\json_writer.h">
       <Filter>src\core\json</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\src\core\profiling\timers.h">
-      <Filter>src\core\profiling</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\src\core\statistics\census_interface.h">
       <Filter>src\core\statistics</Filter>
     </ClInclude>
@@ -902,9 +890,6 @@
     <Filter Include="src\core\json">
       <UniqueIdentifier>{e665cc0e-b994-d7c5-cc18-2007392019f0}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\profiling">
-      <UniqueIdentifier>{87674b72-0f05-0469-481a-bd8c7af9ad80}</UniqueIdentifier>
-    </Filter>
     <Filter Include="src\core\security">
       <UniqueIdentifier>{1d850ac6-e639-4eab-5338-4ba40272fcc9}</UniqueIdentifier>
     </Filter>

diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index 6027c39..e308a03 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj

@@ -277,6 +277,9 @@
     <ClInclude Include="..\..\..\src\core\httpcli\format_request.h" />
     <ClInclude Include="..\..\..\src\core\httpcli\httpcli.h" />
     <ClInclude Include="..\..\..\src\core\httpcli\parser.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm_heap.h" />
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm_internal.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\closure.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\endpoint.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\endpoint_pair.h" />
@@ -304,9 +307,6 @@
     <ClInclude Include="..\..\..\src\core\iomgr\tcp_server.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\tcp_windows.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\time_averaged_stats.h" />
-    <ClInclude Include="..\..\..\src\core\iomgr\timer.h" />
-    <ClInclude Include="..\..\..\src\core\iomgr\timer_heap.h" />
-    <ClInclude Include="..\..\..\src\core\iomgr\timer_internal.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\udp_server.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_pipe.h" />
     <ClInclude Include="..\..\..\src\core\iomgr\wakeup_fd_posix.h" />
@@ -317,7 +317,6 @@
     <ClInclude Include="..\..\..\src\core\json\json_common.h" />
     <ClInclude Include="..\..\..\src\core\json\json_reader.h" />
     <ClInclude Include="..\..\..\src\core\json\json_writer.h" />
-    <ClInclude Include="..\..\..\src\core\profiling\timers.h" />
     <ClInclude Include="..\..\..\src\core\statistics\census_interface.h" />
     <ClInclude Include="..\..\..\src\core\statistics\census_rpc_stats.h" />
     <ClInclude Include="..\..\..\src\core\surface\api_trace.h" />
@@ -429,6 +428,10 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\httpcli\parser.c">
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\alarm.c">
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\alarm_heap.c">
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\closure.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\endpoint.c">
@@ -489,10 +492,6 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\time_averaged_stats.c">
     </ClCompile>
-    <ClCompile Include="..\..\..\src\core\iomgr\timer.c">
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\iomgr\timer_heap.c">
-    </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\udp_server.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\wakeup_fd_eventfd.c">
@@ -515,12 +514,6 @@
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\json\json_writer.c">
     </ClCompile>
-    <ClCompile Include="..\..\..\src\core\profiling\basic_timers.c">
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\profiling\stap_timers.c">
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\surface\alarm.c">
-    </ClCompile>
     <ClCompile Include="..\..\..\src\core\surface\api_trace.c">
     </ClCompile>
     <ClCompile Include="..\..\..\src\core\surface\byte_buffer.c">

diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 7e3efbe..370d1f6 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters

@@ -103,6 +103,12 @@
     <ClCompile Include="..\..\..\src\core\httpcli\parser.c">
       <Filter>src\core\httpcli</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\alarm.c">
+      <Filter>src\core\iomgr</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\..\src\core\iomgr\alarm_heap.c">
+      <Filter>src\core\iomgr</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\closure.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
@@ -193,12 +199,6 @@
     <ClCompile Include="..\..\..\src\core\iomgr\time_averaged_stats.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\core\iomgr\timer.c">
-      <Filter>src\core\iomgr</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\iomgr\timer_heap.c">
-      <Filter>src\core\iomgr</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\core\iomgr\udp_server.c">
       <Filter>src\core\iomgr</Filter>
     </ClCompile>
@@ -232,15 +232,6 @@
     <ClCompile Include="..\..\..\src\core\json\json_writer.c">
       <Filter>src\core\json</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\..\src\core\profiling\basic_timers.c">
-      <Filter>src\core\profiling</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\profiling\stap_timers.c">
-      <Filter>src\core\profiling</Filter>
-    </ClCompile>
-    <ClCompile Include="..\..\..\src\core\surface\alarm.c">
-      <Filter>src\core\surface</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\..\src\core\surface\api_trace.c">
       <Filter>src\core\surface</Filter>
     </ClCompile>
@@ -506,6 +497,15 @@
     <ClInclude Include="..\..\..\src\core\httpcli\parser.h">
       <Filter>src\core\httpcli</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm_heap.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\src\core\iomgr\alarm_internal.h">
+      <Filter>src\core\iomgr</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\src\core\iomgr\closure.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
@@ -587,15 +587,6 @@
     <ClInclude Include="..\..\..\src\core\iomgr\time_averaged_stats.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\src\core\iomgr\timer.h">
-      <Filter>src\core\iomgr</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\..\src\core\iomgr\timer_heap.h">
-      <Filter>src\core\iomgr</Filter>
-    </ClInclude>
-    <ClInclude Include="..\..\..\src\core\iomgr\timer_internal.h">
-      <Filter>src\core\iomgr</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\src\core\iomgr\udp_server.h">
       <Filter>src\core\iomgr</Filter>
     </ClInclude>
@@ -626,9 +617,6 @@
     <ClInclude Include="..\..\..\src\core\json\json_writer.h">
       <Filter>src\core\json</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\..\src\core\profiling\timers.h">
-      <Filter>src\core\profiling</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\..\src\core\statistics\census_interface.h">
       <Filter>src\core\statistics</Filter>
     </ClInclude>
@@ -800,9 +788,6 @@
     <Filter Include="src\core\json">
       <UniqueIdentifier>{443ffc61-1bea-2477-6e54-1ddf8c139264}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\profiling">
-      <UniqueIdentifier>{7f91d9bf-c9de-835a-d74d-b16f843b89a9}</UniqueIdentifier>
-    </Filter>
     <Filter Include="src\core\statistics">
       <UniqueIdentifier>{e084164c-a069-00e3-db35-4e0b1cd6f0b7}</UniqueIdentifier>
     </Filter>

diff --git a/vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj b/vsprojects/vcxproj/test/alarm_heap_test/alarm_heap_test.vcxproj
similarity index 97%
rename from vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj
rename to vsprojects/vcxproj/test/alarm_heap_test/alarm_heap_test.vcxproj
index 4f00b62..f3c0cfd 100644
--- a/vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj
+++ b/vsprojects/vcxproj/test/alarm_heap_test/alarm_heap_test.vcxproj

@@ -20,7 +20,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}</ProjectGuid>
+    <ProjectGuid>{B1746F03-DFBD-83E6-9886-2BB0F9D70B57}</ProjectGuid>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
@@ -55,13 +55,13 @@
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>timer_list_test</TargetName>
+    <TargetName>alarm_heap_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>timer_list_test</TargetName>
+    <TargetName>alarm_heap_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
@@ -143,7 +143,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="..\..\..\..\test\core\iomgr\timer_list_test.c">
+    <ClCompile Include="..\..\..\..\test\core\iomgr\alarm_heap_test.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>

diff --git a/vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj.filters b/vsprojects/vcxproj/test/alarm_heap_test/alarm_heap_test.vcxproj.filters
similarity index 64%
copy from vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj.filters
copy to vsprojects/vcxproj/test/alarm_heap_test/alarm_heap_test.vcxproj.filters
index 8973e5a..74604fa 100644
--- a/vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj.filters
+++ b/vsprojects/vcxproj/test/alarm_heap_test/alarm_heap_test.vcxproj.filters

@@ -1,20 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClCompile Include="..\..\..\..\test\core\iomgr\timer_list_test.c">
+    <ClCompile Include="..\..\..\..\test\core\iomgr\alarm_heap_test.c">
       <Filter>test\core\iomgr</Filter>
     </ClCompile>
   </ItemGroup>
 
   <ItemGroup>
     <Filter Include="test">
-      <UniqueIdentifier>{ce536631-1d52-1c3c-8eed-efe2f4bae6ed}</UniqueIdentifier>
+      <UniqueIdentifier>{39c80086-e80b-b26f-6db8-7057b2bd93b3}</UniqueIdentifier>
     </Filter>
     <Filter Include="test\core">
-      <UniqueIdentifier>{b877a050-4172-3910-dede-77628e0ef150}</UniqueIdentifier>
+      <UniqueIdentifier>{c551e414-1de0-a7c1-a69b-3ba69c55e5d4}</UniqueIdentifier>
     </Filter>
     <Filter Include="test\core\iomgr">
-      <UniqueIdentifier>{087dd179-d26d-8e56-707b-6059afbfd70a}</UniqueIdentifier>
+      <UniqueIdentifier>{1330dfd2-f26b-7973-17c9-97c8809e9b74}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
 </Project>

diff --git a/vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj b/vsprojects/vcxproj/test/alarm_list_test/alarm_list_test.vcxproj
similarity index 97%
copy from vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj
copy to vsprojects/vcxproj/test/alarm_list_test/alarm_list_test.vcxproj
index 4f00b62..cce21d4 100644
--- a/vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj
+++ b/vsprojects/vcxproj/test/alarm_list_test/alarm_list_test.vcxproj

@@ -20,7 +20,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{C43EA45B-1E72-C58D-8CE3-A879D1B1E2DB}</ProjectGuid>
+    <ProjectGuid>{E6F27D86-476F-CB60-AC56-ED3A210C0E96}</ProjectGuid>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
@@ -55,13 +55,13 @@
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>timer_list_test</TargetName>
+    <TargetName>alarm_list_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>timer_list_test</TargetName>
+    <TargetName>alarm_list_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
@@ -143,7 +143,7 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
-    <ClCompile Include="..\..\..\..\test\core\iomgr\timer_list_test.c">
+    <ClCompile Include="..\..\..\..\test\core\iomgr\alarm_list_test.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>

diff --git a/vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj.filters b/vsprojects/vcxproj/test/alarm_list_test/alarm_list_test.vcxproj.filters
similarity index 64%
rename from vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj.filters
rename to vsprojects/vcxproj/test/alarm_list_test/alarm_list_test.vcxproj.filters
index 8973e5a..cc4cbf7 100644
--- a/vsprojects/vcxproj/test/timer_list_test/timer_list_test.vcxproj.filters
+++ b/vsprojects/vcxproj/test/alarm_list_test/alarm_list_test.vcxproj.filters

@@ -1,20 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClCompile Include="..\..\..\..\test\core\iomgr\timer_list_test.c">
+    <ClCompile Include="..\..\..\..\test\core\iomgr\alarm_list_test.c">
       <Filter>test\core\iomgr</Filter>
     </ClCompile>
   </ItemGroup>
 
   <ItemGroup>
     <Filter Include="test">
-      <UniqueIdentifier>{ce536631-1d52-1c3c-8eed-efe2f4bae6ed}</UniqueIdentifier>
+      <UniqueIdentifier>{5599c85d-915e-7ef2-1b2c-061b82987e1d}</UniqueIdentifier>
     </Filter>
     <Filter Include="test\core">
-      <UniqueIdentifier>{b877a050-4172-3910-dede-77628e0ef150}</UniqueIdentifier>
+      <UniqueIdentifier>{46744e86-73cb-67b0-cddb-72655b2ded40}</UniqueIdentifier>
     </Filter>
     <Filter Include="test\core\iomgr">
-      <UniqueIdentifier>{087dd179-d26d-8e56-707b-6059afbfd70a}</UniqueIdentifier>
+      <UniqueIdentifier>{26291b48-8dd4-079f-bbfa-a07190367bd7}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
 </Project>

diff --git a/vsprojects/vcxproj/test/alarm_test/alarm_test.vcxproj b/vsprojects/vcxproj/test/alarm_test/alarm_test.vcxproj
deleted file mode 100644
index d7afec6..0000000
--- a/vsprojects/vcxproj/test/alarm_test/alarm_test.vcxproj
+++ /dev/null

@@ -1,192 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\..\..\..\vsprojects\packages\grpc.dependencies.openssl.1.0.2.3\build\native\grpc.dependencies.openssl.props" Condition="Exists('..\..\..\..\vsprojects\packages\grpc.dependencies.openssl.1.0.2.3\build\native\1.0.2.3.props')" />
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Debug|x64">
-      <Configuration>Debug</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|x64">
-      <Configuration>Release</Configuration>
-      <Platform>x64</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{AFD362D7-0E2A-E700-1F27-9D90F76166DF}</ProjectGuid>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
-    <PlatformToolset>v100</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
-    <PlatformToolset>v110</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
-    <PlatformToolset>v120</PlatformToolset>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <UseDebugLibraries>false</UseDebugLibraries>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>Unicode</CharacterSet>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-    <Import Project="..\..\..\..\vsprojects\cpptest.props" />
-    <Import Project="..\..\..\..\vsprojects\global.props" />
-    <Import Project="..\..\..\..\vsprojects\openssl.props" />
-    <Import Project="..\..\..\..\vsprojects\protobuf.props" />
-    <Import Project="..\..\..\..\vsprojects\winsock.props" />
-    <Import Project="..\..\..\..\vsprojects\zlib.props" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>alarm_test</TargetName>
-    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
-    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
-    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>alarm_test</TargetName>
-    <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
-    <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
-    <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
-  </PropertyGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <PrecompiledHeader>NotUsing</PrecompiledHeader>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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index 6a22add..0000000
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commit	5f9e979e8c73c38791e109be9bc02c41fc45f453	[log] [tgz]
author	David Garcia Quintas <dgq@google.com>	Tue Oct 13 15:26:33 2015 -0700
committer	David Garcia Quintas <dgq@google.com>	Tue Oct 13 15:26:33 2015 -0700
tree	0649bd2f3a999ac18678dfcaf3d77124be35a9c4
parent	af6f3ac555402f74ef36526844218d5fae8560a5 [diff]
parent	bee8f104c0827bc829402d79c8302835adfc37f9 [diff]