diff --git a/BUILD b/BUILD
index 7c01d6b..146e0b3 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",
@@ -218,7 +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",
@@ -356,8 +358,6 @@
     "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/api_trace.c",
     "src/core/surface/byte_buffer.c",
     "src/core/surface/byte_buffer_queue.c",
@@ -504,7 +504,6 @@
     "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",
@@ -622,8 +621,6 @@
     "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/api_trace.c",
     "src/core/surface/byte_buffer.c",
     "src/core/surface/byte_buffer_queue.c",
@@ -961,6 +958,8 @@
 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",
@@ -1028,6 +1027,7 @@
     "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",
@@ -1147,8 +1147,6 @@
     "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/api_trace.c",
     "src/core/surface/byte_buffer.c",
     "src/core/surface/byte_buffer_queue.c",
@@ -1292,7 +1290,6 @@
     "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 6d6dc71..788fdb5 100644
--- a/Makefile
+++ b/Makefile
@@ -3893,6 +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 \
@@ -4118,8 +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/api_trace.c \
     src/core/surface/byte_buffer.c \
     src/core/surface/byte_buffer_queue.c \
@@ -4400,8 +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/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 503d7a8..0cba173 100644
--- a/build.yaml
+++ b/build.yaml
@@ -177,7 +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
@@ -292,8 +291,6 @@
   - 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/api_trace.c
   - src/core/surface/byte_buffer.c
   - src/core/surface/byte_buffer_queue.c
@@ -392,6 +389,7 @@
   - 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
@@ -402,6 +400,8 @@
   - 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
diff --git a/gRPC.podspec b/gRPC.podspec
index 5b93281..12642b5 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',
@@ -222,7 +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',
@@ -367,8 +369,6 @@
                       '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/api_trace.c',
                       'src/core/surface/byte_buffer.c',
                       'src/core/surface/byte_buffer_queue.c',
@@ -419,7 +419,8 @@
                       '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',
@@ -513,7 +514,6 @@
                               '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/grpc.gyp b/grpc.gyp
index 668a6e1..8bb148d 100644
--- a/grpc.gyp
+++ b/grpc.gyp
@@ -94,6 +94,8 @@
       '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',
@@ -239,8 +241,6 @@
         '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/api_trace.c',
         'src/core/surface/byte_buffer.c',
         'src/core/surface/byte_buffer_queue.c',
diff --git a/src/core/channel/client_channel.c b/src/core/channel/client_channel.c
index 79c5658..1bdba5b 100644
--- a/src/core/channel/client_channel.c
+++ b/src/core/channel/client_channel.c
@@ -237,7 +237,7 @@
   call_data *calld = arg;
   grpc_pollset *pollset;
 
-  GRPC_TIMER_BEGIN("picked_target", 0);
+  GPR_TIMER_BEGIN("picked_target", 0);
 
   if (calld->picked_channel == NULL) {
     /* treat this like a cancellation */
@@ -260,7 +260,7 @@
     }
   }
 
-  GRPC_TIMER_END("picked_target", 0);
+  GPR_TIMER_END("picked_target", 0);
 }
 
 static grpc_closure *merge_into_waiting_op(grpc_call_element *elem,
@@ -321,7 +321,7 @@
   grpc_subchannel_call *subchannel_call;
   grpc_lb_policy *lb_policy;
   grpc_transport_stream_op op2;
-  GRPC_TIMER_BEGIN("perform_transport_stream_op", 0);
+  GPR_TIMER_BEGIN("perform_transport_stream_op", 0);
   GPR_ASSERT(elem->filter == &grpc_client_channel_filter);
   GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
 
@@ -434,7 +434,7 @@
       break;
   }
 
-  GRPC_TIMER_END("perform_transport_stream_op", 0);
+  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 6c1ed29..477e607 100644
--- a/src/core/channel/compress_filter.c
+++ b/src/core/channel/compress_filter.c
@@ -272,13 +272,13 @@
 static void compress_start_transport_stream_op(grpc_exec_ctx *exec_ctx,
                                                grpc_call_element *elem,
                                                grpc_transport_stream_op *op) {
-  GRPC_TIMER_BEGIN("compress_start_transport_stream_op", 0);
+  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);
   }
 
-  GRPC_TIMER_END("compress_start_transport_stream_op", 0);
+  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/http_client_filter.c b/src/core/channel/http_client_filter.c
index 9a7f8c4..f78a5cc 100644
--- a/src/core/channel/http_client_filter.c
+++ b/src/core/channel/http_client_filter.c
@@ -163,10 +163,10 @@
 static void hc_start_transport_op(grpc_exec_ctx *exec_ctx,
                                   grpc_call_element *elem,
                                   grpc_transport_stream_op *op) {
-  GRPC_TIMER_BEGIN("hc_start_transport_op", 0);
+  GPR_TIMER_BEGIN("hc_start_transport_op", 0);
   GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
   hc_mutate_op(elem, op);
-  GRPC_TIMER_END("hc_start_transport_op", 0);
+  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 16a0c1d..99e5066 100644
--- a/src/core/channel/http_server_filter.c
+++ b/src/core/channel/http_server_filter.c
@@ -231,10 +231,10 @@
                                   grpc_call_element *elem,
                                   grpc_transport_stream_op *op) {
   GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
-  GRPC_TIMER_BEGIN("hs_start_transport_op", 0);
+  GPR_TIMER_BEGIN("hs_start_transport_op", 0);
   hs_mutate_op(elem, op);
   grpc_call_next_op(exec_ctx, elem, op);
-  GRPC_TIMER_END("hs_start_transport_op", 0);
+  GPR_TIMER_END("hs_start_transport_op", 0);
 }
 
 /* Constructor for call_data */
diff --git a/src/core/iomgr/exec_ctx.c b/src/core/iomgr/exec_ctx.c
index 1ad3988..410b34c 100644
--- a/src/core/iomgr/exec_ctx.c
+++ b/src/core/iomgr/exec_ctx.c
@@ -39,20 +39,20 @@
 
 int grpc_exec_ctx_flush(grpc_exec_ctx *exec_ctx) {
   int did_something = 0;
-  GRPC_TIMER_BEGIN("grpc_exec_ctx_flush", 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++;
-      GRPC_TIMER_BEGIN("grpc_exec_ctx_flush.cb", 0);
+      GPR_TIMER_BEGIN("grpc_exec_ctx_flush.cb", 0);
       c->cb(exec_ctx, c->cb_arg, c->success);
-      GRPC_TIMER_END("grpc_exec_ctx_flush.cb", 0);
+      GPR_TIMER_END("grpc_exec_ctx_flush.cb", 0);
       c = next;
     }
   }
-  GRPC_TIMER_END("grpc_exec_ctx_flush", 0);
+  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 e874391..2aafd21 100644
--- a/src/core/iomgr/pollset_multipoller_with_epoll.c
+++ b/src/core/iomgr/pollset_multipoller_with_epoll.c
@@ -183,11 +183,11 @@
 
   /* TODO(vpai): Consider first doing a 0 timeout poll here to avoid
      even going into the blocking annotation if possible */
-  GRPC_TIMER_BEGIN("poll", 0);
+  GPR_TIMER_BEGIN("poll", 0);
   GRPC_SCHEDULING_START_BLOCKING_REGION;
   poll_rv = grpc_poll_function(pfds, 2, timeout_ms);
   GRPC_SCHEDULING_END_BLOCKING_REGION;
-  GRPC_TIMER_END("poll", 0);
+  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 6c813bf..4d8bc53 100644
--- a/src/core/iomgr/pollset_posix.c
+++ b/src/core/iomgr/pollset_posix.c
@@ -101,12 +101,12 @@
 void grpc_pollset_kick_ext(grpc_pollset *p,
                            grpc_pollset_worker *specific_worker,
                            gpr_uint32 flags) {
-  GRPC_TIMER_BEGIN("grpc_pollset_kick_ext", 0);
+  GPR_TIMER_BEGIN("grpc_pollset_kick_ext", 0);
 
   /* pollset->mu already held */
   if (specific_worker != NULL) {
     if (specific_worker == GRPC_POLLSET_KICK_BROADCAST) {
-      GRPC_TIMER_BEGIN("grpc_pollset_kick_ext.broadcast", 0);
+      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;
@@ -114,16 +114,16 @@
         grpc_wakeup_fd_wakeup(&specific_worker->wakeup_fd);
       }
       p->kicked_without_pollers = 1;
-      GRPC_TIMER_END("grpc_pollset_kick_ext.broadcast", 0);
+      GPR_TIMER_END("grpc_pollset_kick_ext.broadcast", 0);
     } else if (gpr_tls_get(&g_current_thread_worker) !=
                (gpr_intptr)specific_worker) {
-      GRPC_TIMER_MARK("different_thread_worker", 0);
+      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);
     } else if ((flags & GRPC_POLLSET_CAN_KICK_SELF) != 0) {
-      GRPC_TIMER_MARK("kick_yoself", 0);
+      GPR_TIMER_MARK("kick_yoself", 0);
       if ((flags & GRPC_POLLSET_REEVALUATE_POLLING_ON_WAKEUP) != 0) {
         specific_worker->reevaluate_polling_on_wakeup = 1;
       }
@@ -131,12 +131,12 @@
     }
   } else if (gpr_tls_get(&g_current_thread_poller) != (gpr_intptr)p) {
     GPR_ASSERT((flags & GRPC_POLLSET_REEVALUATE_POLLING_ON_WAKEUP) == 0);
-    GRPC_TIMER_MARK("kick_anonymous", 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) {
-        GRPC_TIMER_MARK("kick_anonymous_not_self", 0);
+        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 &&
@@ -147,17 +147,17 @@
         }
       }
       if (specific_worker != NULL) {
-        GRPC_TIMER_MARK("finally_kick", 0);
+        GPR_TIMER_MARK("finally_kick", 0);
         push_back_worker(p, specific_worker);
         grpc_wakeup_fd_wakeup(&specific_worker->wakeup_fd);
       }
     } else {
-      GRPC_TIMER_MARK("kicked_no_pollers", 0);
+      GPR_TIMER_MARK("kicked_no_pollers", 0);
       p->kicked_without_pollers = 1;
     }
   }
 
-  GRPC_TIMER_END("grpc_pollset_kick_ext", 0);
+  GPR_TIMER_END("grpc_pollset_kick_ext", 0);
 }
 
 void grpc_pollset_kick(grpc_pollset *p, grpc_pollset_worker *specific_worker) {
@@ -238,7 +238,7 @@
   int locked = 1;
   int queued_work = 0;
   int keep_polling = 0;
-  GRPC_TIMER_BEGIN("grpc_pollset_work", 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;
@@ -283,10 +283,10 @@
       }
       gpr_tls_set(&g_current_thread_poller, (gpr_intptr)pollset);
       gpr_tls_set(&g_current_thread_worker, (gpr_intptr)worker);
-      GRPC_TIMER_BEGIN("maybe_work_and_unlock", 0);
+      GPR_TIMER_BEGIN("maybe_work_and_unlock", 0);
       pollset->vtable->maybe_work_and_unlock(exec_ctx, pollset, worker,
                                              deadline, now);
-      GRPC_TIMER_END("maybe_work_and_unlock", 0);
+      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);
@@ -341,7 +341,7 @@
       gpr_mu_lock(&pollset->mu);
     }
   }
-  GRPC_TIMER_END("grpc_pollset_work", 0);
+  GPR_TIMER_END("grpc_pollset_work", 0);
 }
 
 void grpc_pollset_shutdown(grpc_exec_ctx *exec_ctx, grpc_pollset *pollset,
@@ -576,11 +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 */
-  GRPC_TIMER_BEGIN("poll", 0);
+  GPR_TIMER_BEGIN("poll", 0);
   GRPC_SCHEDULING_START_BLOCKING_REGION;
   r = grpc_poll_function(pfd, nfds, timeout);
   GRPC_SCHEDULING_END_BLOCKING_REGION;
-  GRPC_TIMER_END("poll", 0);
+  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 9e3773b..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("tcp_continue_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("recvmsg", 1);
+  GPR_TIMER_BEGIN("recvmsg", 1);
   do {
     read_bytes = recvmsg(tcp->fd, &msg, 0);
   } while (read_bytes < 0 && errno == EINTR);
-  GRPC_TIMER_END("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("tcp_continue_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("sendmsg", 1);
+    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("sendmsg", 0);
+    GPR_TIMER_END("sendmsg", 0);
 
     if (sent_length < 0) {
       if (errno == EAGAIN) {
@@ -376,9 +376,9 @@
   } else {
     cb = tcp->write_cb;
     tcp->write_cb = NULL;
-    GRPC_TIMER_BEGIN("tcp_handle_write.cb", 0);
+    GPR_TIMER_BEGIN("tcp_handle_write.cb", 0);
     cb->cb(exec_ctx, cb->cb_arg, status == FLUSH_DONE);
-    GRPC_TIMER_END("tcp_handle_write.cb", 0);
+    GPR_TIMER_END("tcp_handle_write.cb", 0);
     TCP_UNREF(exec_ctx, tcp, "write");
   }
 }
@@ -399,11 +399,11 @@
     }
   }
 
-  GRPC_TIMER_BEGIN("tcp_write", 0);
+  GPR_TIMER_BEGIN("tcp_write", 0);
   GPR_ASSERT(tcp->write_cb == NULL);
 
   if (buf->length == 0) {
-    GRPC_TIMER_END("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("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 8a68277..b49cdd0 100644
--- a/src/core/profiling/basic_timers.c
+++ b/src/core/profiling/basic_timers.c
@@ -46,18 +46,18 @@
 
 typedef enum { BEGIN = '{', END = '}', MARK = '.' } marker_type;
 
-typedef struct grpc_timer_entry {
+typedef struct gpr_timer_entry {
   gpr_timespec tm;
   const char *tagstr;
   const char *file;
   int line;
   char type;
   gpr_uint8 important;
-} grpc_timer_entry;
+} 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 g_log[MAX_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;
@@ -74,7 +74,7 @@
   int i;
   gpr_once_init(&g_once_init, init_output);
   for (i = 0; i < g_count; i++) {
-    grpc_timer_entry *entry = &(g_log[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",
@@ -87,9 +87,9 @@
   g_count = 0;
 }
 
-static void grpc_timers_log_add(const char *tagstr, marker_type type,
-                                int important, 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 (g_count == MAX_COUNT) {
@@ -107,28 +107,28 @@
 }
 
 /* Latency profiler API implementation. */
-void grpc_timer_add_mark(const char *tagstr, int important, const char *file,
-                         int line) {
-  grpc_timers_log_add(tagstr, MARK, important, 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_begin(const char *tagstr, int important, const char *file,
-                      int line) {
-  grpc_timers_log_add(tagstr, BEGIN, important, 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_end(const char *tagstr, int important, const char *file,
-                    int line) {
-  grpc_timers_log_add(tagstr, END, important, 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 94251fb..1ea7f71 100644
--- a/src/core/profiling/timers.h
+++ b/src/core/profiling/timers.h
@@ -38,28 +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(const char *tagstr, int important, const char *file,
-                         int line);
-void grpc_timer_begin(const char *tagstr, int important, const char *file,
-                      int line);
-void grpc_timer_end(const char *tagstr, int important, const char *file,
-                    int line);
+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, important) \
+#define GPR_TIMER_MARK(tag, important) \
+  do {                                 \
+  } while (0)
+
+#define GPR_TIMER_BEGIN(tag, important) \
   do {                                  \
   } while (0)
 
-#define GRPC_TIMER_BEGIN(tag, important) \
-  do {                                   \
-  } while (0)
-
-#define GRPC_TIMER_END(tag, important) \
-  do {                                 \
+#define GPR_TIMER_END(tag, important) \
+  do {                                \
   } while (0)
 
 #else /* at least one profiler requested... */
@@ -69,14 +69,14 @@
 #endif
 
 /* Generic profiling interface. */
-#define GRPC_TIMER_MARK(tag, important) \
-  grpc_timer_add_mark(tag, important, __FILE__, __LINE__);
+#define GPR_TIMER_MARK(tag, important) \
+  gpr_timer_add_mark(tag, important, __FILE__, __LINE__);
 
-#define GRPC_TIMER_BEGIN(tag, important) \
-  grpc_timer_begin(tag, important, __FILE__, __LINE__);
+#define GPR_TIMER_BEGIN(tag, important) \
+  gpr_timer_begin(tag, important, __FILE__, __LINE__);
 
-#define GRPC_TIMER_END(tag, important) \
-  grpc_timer_end(tag, important, __FILE__, __LINE__);
+#define GPR_TIMER_END(tag, important) \
+  gpr_timer_end(tag, important, __FILE__, __LINE__);
 
 #ifdef GRPC_STAP_PROFILER
 /* Empty placeholder for now. */
@@ -95,17 +95,17 @@
 class ProfileScope {
  public:
   ProfileScope(const char *desc, bool important) : desc_(desc) {
-    GRPC_TIMER_BEGIN(desc_, important ? 1 : 0);
+    GPR_TIMER_BEGIN(desc_, important ? 1 : 0);
   }
-  ~ProfileScope() { GRPC_TIMER_END(desc_, 0); }
+  ~ProfileScope() { GPR_TIMER_END(desc_, 0); }
 
  private:
   const char *const desc_;
 };
 }
 
-#define GRPC_TIMER_SCOPE(tag, important) \
-  ProfileScope _profile_scope_##__LINE__((tag), (important))
+#define GPR_TIMER_SCOPE(tag, important) \
+  ::grpc::ProfileScope _profile_scope_##__LINE__((tag), (important))
 #endif
 
 #endif /* GRPC_CORE_PROFILING_TIMERS_H */
diff --git a/src/core/support/alloc.c b/src/core/support/alloc.c
index beb0e78..bfcb779 100644
--- a/src/core/support/alloc.c
+++ b/src/core/support/alloc.c
@@ -39,28 +39,28 @@
 
 void *gpr_malloc(size_t size) {
   void *p;
-  GRPC_TIMER_BEGIN("gpr_malloc", 0);
+  GPR_TIMER_BEGIN("gpr_malloc", 0);
   p = malloc(size);
   if (!p) {
     abort();
   }
-  GRPC_TIMER_END("gpr_malloc", 0);
+  GPR_TIMER_END("gpr_malloc", 0);
   return p;
 }
 
 void gpr_free(void *p) {
-  GRPC_TIMER_BEGIN("gpr_free", 0);
+  GPR_TIMER_BEGIN("gpr_free", 0);
   free(p);
-  GRPC_TIMER_END("gpr_free", 0);
+  GPR_TIMER_END("gpr_free", 0);
 }
 
 void *gpr_realloc(void *p, size_t size) {
-  GRPC_TIMER_BEGIN("gpr_realloc", 0);
+  GPR_TIMER_BEGIN("gpr_realloc", 0);
   p = realloc(p, size);
   if (!p) {
     abort();
   }
-  GRPC_TIMER_END("gpr_realloc", 0);
+  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 f356bec..39c96fe 100644
--- a/src/core/support/sync_posix.c
+++ b/src/core/support/sync_posix.c
@@ -47,15 +47,15 @@
 void gpr_mu_destroy(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_destroy(mu) == 0); }
 
 void gpr_mu_lock(gpr_mu* mu) {
-  GRPC_TIMER_BEGIN("gpr_mu_lock", 0);
+  GPR_TIMER_BEGIN("gpr_mu_lock", 0);
   GPR_ASSERT(pthread_mutex_lock(mu) == 0);
-  GRPC_TIMER_END("gpr_mu_lock", 0);
+  GPR_TIMER_END("gpr_mu_lock", 0);
 }
 
 void gpr_mu_unlock(gpr_mu* mu) {
-  GRPC_TIMER_BEGIN("gpr_mu_unlock", 0);
+  GPR_TIMER_BEGIN("gpr_mu_unlock", 0);
   GPR_ASSERT(pthread_mutex_unlock(mu) == 0);
-  GRPC_TIMER_END("gpr_mu_unlock", 0);
+  GPR_TIMER_END("gpr_mu_unlock", 0);
 }
 
 int gpr_mu_trylock(gpr_mu* mu) {
diff --git a/src/core/surface/call.c b/src/core/surface/call.c
index 73c5260..9efcb90 100644
--- a/src/core/surface/call.c
+++ b/src/core/surface/call.c
@@ -307,7 +307,7 @@
   grpc_channel_stack *channel_stack = grpc_channel_get_channel_stack(channel);
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
   grpc_call *call;
-  GRPC_TIMER_BEGIN("grpc_call_create", 0);
+  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);
@@ -402,7 +402,7 @@
     set_deadline_alarm(&exec_ctx, call, send_deadline);
   }
   grpc_exec_ctx_finish(&exec_ctx);
-  GRPC_TIMER_END("grpc_call_create", 0);
+  GPR_TIMER_END("grpc_call_create", 0);
   return call;
 }
 
@@ -464,7 +464,7 @@
 static void destroy_call(grpc_exec_ctx *exec_ctx, grpc_call *call) {
   size_t i;
   grpc_call *c = call;
-  GRPC_TIMER_BEGIN("destroy_call", 0);
+  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);
@@ -497,7 +497,7 @@
     GRPC_CQ_INTERNAL_UNREF(c->cq, "bind");
   }
   gpr_free(c);
-  GRPC_TIMER_END("destroy_call", 0);
+  GPR_TIMER_END("destroy_call", 0);
 }
 
 #ifdef GRPC_CALL_REF_COUNT_DEBUG
@@ -617,7 +617,7 @@
   const size_t MAX_RECV_PEEK_AHEAD = 65536;
   size_t buffered_bytes;
 
-  GRPC_TIMER_BEGIN("unlock", 0);
+  GPR_TIMER_BEGIN("unlock", 0);
 
   memset(&op, 0, sizeof(op));
 
@@ -690,7 +690,7 @@
     GRPC_CALL_INTERNAL_UNREF(exec_ctx, call, "completing");
   }
 
-  GRPC_TIMER_END("unlock", 0);
+  GPR_TIMER_END("unlock", 0);
 }
 
 static void get_final_status(grpc_call *call, grpc_ioreq_data out) {
@@ -840,7 +840,7 @@
 
 static void call_on_done_send(grpc_exec_ctx *exec_ctx, void *pc, int success) {
   grpc_call *call = pc;
-  GRPC_TIMER_BEGIN("call_on_done_send", 0);
+  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);
@@ -864,11 +864,11 @@
   call->sending = 0;
   unlock(exec_ctx, call);
   GRPC_CALL_INTERNAL_UNREF(exec_ctx, call, "sending");
-  GRPC_TIMER_END("call_on_done_send", 0);
+  GPR_TIMER_END("call_on_done_send", 0);
 }
 
 static void finish_message(grpc_call *call) {
-  GRPC_TIMER_BEGIN("finish_message", 0);
+  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;
@@ -888,7 +888,7 @@
   gpr_slice_buffer_reset_and_unref(&call->incoming_message);
   GPR_ASSERT(call->incoming_message.count == 0);
   call->reading_message = 0;
-  GRPC_TIMER_END("finish_message", 0);
+  GPR_TIMER_END("finish_message", 0);
 }
 
 static int begin_message(grpc_call *call, grpc_begin_message msg) {
@@ -978,7 +978,7 @@
   grpc_call *child_call;
   grpc_call *next_child_call;
   size_t i;
-  GRPC_TIMER_BEGIN("call_on_done_recv", 0);
+  GPR_TIMER_BEGIN("call_on_done_recv", 0);
   lock(call);
   call->receiving = 0;
   if (success) {
@@ -988,19 +988,19 @@
         case GRPC_NO_OP:
           break;
         case GRPC_OP_METADATA:
-          GRPC_TIMER_BEGIN("recv_metadata", 0);
+          GPR_TIMER_BEGIN("recv_metadata", 0);
           recv_metadata(exec_ctx, call, &op->data.metadata);
-          GRPC_TIMER_END("recv_metadata", 0);
+          GPR_TIMER_END("recv_metadata", 0);
           break;
         case GRPC_OP_BEGIN_MESSAGE:
-          GRPC_TIMER_BEGIN("begin_message", 0);
+          GPR_TIMER_BEGIN("begin_message", 0);
           success = begin_message(call, op->data.begin_message);
-          GRPC_TIMER_END("begin_message", 0);
+          GPR_TIMER_END("begin_message", 0);
           break;
         case GRPC_OP_SLICE:
-          GRPC_TIMER_BEGIN("add_slice_to_message", 0);
+          GPR_TIMER_BEGIN("add_slice_to_message", 0);
           success = add_slice_to_message(call, op->data.slice);
-          GRPC_TIMER_END("add_slice_to_message", 0);
+          GPR_TIMER_END("add_slice_to_message", 0);
           break;
       }
     }
@@ -1046,7 +1046,7 @@
   unlock(exec_ctx, call);
 
   GRPC_CALL_INTERNAL_UNREF(exec_ctx, call, "receiving");
-  GRPC_TIMER_END("call_on_done_recv", 0);
+  GPR_TIMER_END("call_on_done_recv", 0);
 }
 
 static int prepare_application_metadata(grpc_call *call, size_t count,
@@ -1524,25 +1524,25 @@
     grpc_mdelem *mdel = l->md;
     grpc_mdstr *key = mdel->key;
     if (key == grpc_channel_get_status_string(call->channel)) {
-      GRPC_TIMER_BEGIN("status", 0);
+      GPR_TIMER_BEGIN("status", 0);
       set_status_code(call, STATUS_FROM_WIRE, decode_status(mdel));
-      GRPC_TIMER_END("status", 0);
+      GPR_TIMER_END("status", 0);
     } else if (key == grpc_channel_get_message_string(call->channel)) {
-      GRPC_TIMER_BEGIN("status-details", 0);
+      GPR_TIMER_BEGIN("status-details", 0);
       set_status_details(call, STATUS_FROM_WIRE, GRPC_MDSTR_REF(mdel->value));
-      GRPC_TIMER_END("status-details", 0);
+      GPR_TIMER_END("status-details", 0);
     } else if (key ==
                grpc_channel_get_compression_algorithm_string(call->channel)) {
-      GRPC_TIMER_BEGIN("compression_algorithm", 0);
+      GPR_TIMER_BEGIN("compression_algorithm", 0);
       set_compression_algorithm(call, decode_compression(mdel));
-      GRPC_TIMER_END("compression_algorithm", 0);
+      GPR_TIMER_END("compression_algorithm", 0);
     } else if (key == grpc_channel_get_encodings_accepted_by_peer_string(
                           call->channel)) {
-      GRPC_TIMER_BEGIN("encodings_accepted_by_peer", 0);
+      GPR_TIMER_BEGIN("encodings_accepted_by_peer", 0);
       set_encodings_accepted_by_peer(call, mdel->value->slice);
-      GRPC_TIMER_END("encodings_accepted_by_peer", 0);
+      GPR_TIMER_END("encodings_accepted_by_peer", 0);
     } else {
-      GRPC_TIMER_BEGIN("report_up", 0);
+      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);
@@ -1563,15 +1563,15 @@
       }
       call->owned_metadata[call->owned_metadata_count++] = mdel;
       l->md = NULL;
-      GRPC_TIMER_END("report_up", 0);
+      GPR_TIMER_END("report_up", 0);
     }
   }
   if (gpr_time_cmp(md->deadline, gpr_inf_future(md->deadline.clock_type)) !=
           0 &&
       !call->is_client) {
-    GRPC_TIMER_BEGIN("set_deadline_alarm", 0);
+    GPR_TIMER_BEGIN("set_deadline_alarm", 0);
     set_deadline_alarm(exec_ctx, call, md->deadline);
-    GRPC_TIMER_END("set_deadline_alarm", 0);
+    GPR_TIMER_END("set_deadline_alarm", 0);
   }
   if (!is_trailing) {
     call->read_state = READ_STATE_GOT_INITIAL_METADATA;
@@ -1634,7 +1634,7 @@
   grpc_call_error error;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
 
-  GRPC_TIMER_BEGIN("grpc_call_start_batch", 0);
+  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)",
@@ -1873,7 +1873,7 @@
                                               finish_func, tag);
 done:
   grpc_exec_ctx_finish(&exec_ctx);
-  GRPC_TIMER_END("grpc_call_start_batch", 0);
+  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 7c01832..bc32f55 100644
--- a/src/core/surface/completion_queue.c
+++ b/src/core/surface/completion_queue.c
@@ -144,7 +144,7 @@
   int i;
   grpc_pollset_worker *pluck_worker;
 
-  GRPC_TIMER_BEGIN("grpc_cq_end_op", 0);
+  GPR_TIMER_BEGIN("grpc_cq_end_op", 0);
 
   storage->tag = tag;
   storage->done = done;
@@ -178,7 +178,7 @@
     grpc_pollset_shutdown(exec_ctx, &cc->pollset, &cc->pollset_destroy_done);
   }
 
-  GRPC_TIMER_END("grpc_cq_end_op", 0);
+  GPR_TIMER_END("grpc_cq_end_op", 0);
 }
 
 grpc_event grpc_completion_queue_next(grpc_completion_queue *cc,
@@ -189,7 +189,7 @@
   gpr_timespec now;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
 
-  GRPC_TIMER_BEGIN("grpc_completion_queue_next", 0);
+  GPR_TIMER_BEGIN("grpc_completion_queue_next", 0);
 
   GRPC_API_TRACE(
       "grpc_completion_queue_next("
@@ -238,7 +238,7 @@
   GRPC_CQ_INTERNAL_UNREF(cc, "next");
   grpc_exec_ctx_finish(&exec_ctx);
 
-  GRPC_TIMER_END("grpc_completion_queue_next", 0);
+  GPR_TIMER_END("grpc_completion_queue_next", 0);
 
   return ret;
 }
@@ -278,7 +278,7 @@
   int first_loop = 1;
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
 
-  GRPC_TIMER_BEGIN("grpc_completion_queue_pluck", 0);
+  GPR_TIMER_BEGIN("grpc_completion_queue_pluck", 0);
 
   GRPC_API_TRACE(
       "grpc_completion_queue_pluck("
@@ -346,7 +346,7 @@
   GRPC_CQ_INTERNAL_UNREF(cc, "pluck");
   grpc_exec_ctx_finish(&exec_ctx);
 
-  GRPC_TIMER_END("grpc_completion_queue_pluck", 0);
+  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 e71d4fc..04e4803 100644
--- a/src/core/transport/chttp2/parsing.c
+++ b/src/core/transport/chttp2/parsing.c
@@ -69,7 +69,7 @@
   grpc_chttp2_stream_global *stream_global;
   grpc_chttp2_stream_parsing *stream_parsing;
 
-  GRPC_TIMER_BEGIN("grpc_chttp2_prepare_to_read", 0);
+  GPR_TIMER_BEGIN("grpc_chttp2_prepare_to_read", 0);
 
   transport_parsing->next_stream_id = transport_global->next_stream_id;
 
@@ -93,7 +93,7 @@
     }
   }
 
-  GRPC_TIMER_END("grpc_chttp2_prepare_to_read", 0);
+  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 4abe00b..69ad885 100644
--- a/src/core/transport/chttp2/writing.c
+++ b/src/core/transport/chttp2/writing.c
@@ -181,7 +181,7 @@
 static void finalize_outbuf(grpc_chttp2_transport_writing *transport_writing) {
   grpc_chttp2_stream_writing *stream_writing;
 
-  GRPC_TIMER_BEGIN("finalize_outbuf", 0);
+  GPR_TIMER_BEGIN("finalize_outbuf", 0);
 
   while (
       grpc_chttp2_list_pop_writing_stream(transport_writing, &stream_writing)) {
@@ -212,7 +212,7 @@
     grpc_chttp2_list_add_written_stream(transport_writing, stream_writing);
   }
 
-  GRPC_TIMER_END("finalize_outbuf", 0);
+  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 d39816b..effc3c4 100644
--- a/src/core/transport/chttp2_transport.c
+++ b/src/core/transport/chttp2_transport.c
@@ -510,7 +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) {
-  GRPC_TIMER_BEGIN("unlock", 0);
+  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)) {
@@ -521,7 +521,7 @@
   }
 
   gpr_mu_unlock(&t->mu);
-  GRPC_TIMER_END("unlock", 0);
+  GPR_TIMER_END("unlock", 0);
 }
 
 /*
@@ -548,7 +548,7 @@
   grpc_chttp2_transport_writing *transport_writing = transport_writing_ptr;
   grpc_chttp2_transport *t = TRANSPORT_FROM_WRITING(transport_writing);
 
-  GRPC_TIMER_BEGIN("grpc_chttp2_terminate_writing", 0);
+  GPR_TIMER_BEGIN("grpc_chttp2_terminate_writing", 0);
 
   lock(t);
 
@@ -572,15 +572,15 @@
 
   UNREF_TRANSPORT(exec_ctx, t, "writing");
 
-  GRPC_TIMER_END("grpc_chttp2_terminate_writing", 0);
+  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;
-  GRPC_TIMER_BEGIN("writing_action", 0);
+  GPR_TIMER_BEGIN("writing_action", 0);
   grpc_chttp2_perform_writes(exec_ctx, &t->writing, t->ep);
-  GRPC_TIMER_END("writing_action", 0);
+  GPR_TIMER_END("writing_action", 0);
 }
 
 void grpc_chttp2_add_incoming_goaway(
@@ -650,7 +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) {
-  GRPC_TIMER_BEGIN("perform_stream_op_locked", 0);
+  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);
   }
@@ -722,7 +722,7 @@
   }
 
   grpc_exec_ctx_enqueue(exec_ctx, op->on_consumed, 1);
-  GRPC_TIMER_END("perform_stream_op_locked", 0);
+  GPR_TIMER_END("perform_stream_op_locked", 0);
 }
 
 static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt,
@@ -1113,7 +1113,7 @@
   int keep_reading = 0;
   grpc_chttp2_transport *t = tp;
 
-  GRPC_TIMER_BEGIN("recv_data", 0);
+  GPR_TIMER_BEGIN("recv_data", 0);
 
   lock(t);
   i = 0;
@@ -1125,13 +1125,13 @@
                                      &t->parsing_stream_map);
     grpc_chttp2_prepare_to_read(&t->global, &t->parsing);
     gpr_mu_unlock(&t->mu);
-    GRPC_TIMER_BEGIN("recv_data.parse", 0);
+    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++)
       ;
-    GRPC_TIMER_END("recv_data.parse", 0);
+    GPR_TIMER_END("recv_data.parse", 0);
     gpr_mu_lock(&t->mu);
     if (i != t->read_buffer.count) {
       drop_connection(exec_ctx, t);
@@ -1169,7 +1169,7 @@
     UNREF_TRANSPORT(exec_ctx, t, "recv_data");
   }
 
-  GRPC_TIMER_END("recv_data", 0);
+  GPR_TIMER_END("recv_data", 0);
 }
 
 /*
diff --git a/src/core/transport/stream_op.c b/src/core/transport/stream_op.c
index 5c3c90b..6493e77 100644
--- a/src/core/transport/stream_op.c
+++ b/src/core/transport/stream_op.c
@@ -302,7 +302,7 @@
   grpc_linked_mdelem *l;
   grpc_linked_mdelem *next;
 
-  GRPC_TIMER_BEGIN("grpc_metadata_batch_filter", 0);
+  GPR_TIMER_BEGIN("grpc_metadata_batch_filter", 0);
 
   assert_valid_list(&batch->list);
   assert_valid_list(&batch->garbage);
@@ -333,5 +333,5 @@
   assert_valid_list(&batch->list);
   assert_valid_list(&batch->garbage);
 
-  GRPC_TIMER_END("grpc_metadata_batch_filter", 0);
+  GPR_TIMER_END("grpc_metadata_batch_filter", 0);
 }
diff --git a/src/cpp/proto/proto_utils.cc b/src/cpp/proto/proto_utils.cc
index a7b6fd2..b1330fd 100644
--- a/src/cpp/proto/proto_utils.cc
+++ b/src/cpp/proto/proto_utils.cc
@@ -160,7 +160,7 @@
 
 Status SerializeProto(const grpc::protobuf::Message& msg,
                       grpc_byte_buffer** bp) {
-  GRPC_TIMER_SCOPE("SerializeProto", 0);
+  GPR_TIMER_SCOPE("SerializeProto", 0);
   int byte_size = msg.ByteSize();
   if (byte_size <= kMaxBufferLength) {
     gpr_slice slice = gpr_slice_malloc(byte_size);
@@ -179,7 +179,7 @@
 
 Status DeserializeProto(grpc_byte_buffer* buffer, grpc::protobuf::Message* msg,
                         int max_message_size) {
-  GRPC_TIMER_SCOPE("DeserializeProto", 0);
+  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 2cd1905..aacc5c7 100644
--- a/src/cpp/server/server.cc
+++ b/src/cpp/server/server.cc
@@ -541,7 +541,7 @@
 void Server::RunRpc() {
   // Wait for one more incoming rpc.
   bool ok;
-  GRPC_TIMER_SCOPE("Server::RunRpc", 0);
+  GPR_TIMER_SCOPE("Server::RunRpc", 0);
   auto* mrd = SyncRequest::Wait(&cq_, &ok);
   if (mrd) {
     ScheduleCallback();
@@ -557,7 +557,7 @@
           mrd->TeardownRequest();
         }
       }
-      GRPC_TIMER_SCOPE("cd.Run()", 0);
+      GPR_TIMER_SCOPE("cd.Run()", 0);
       cd.Run();
     }
   }
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 6adf92a..3c33a1c 100644
--- a/test/cpp/qps/client_sync.cc
+++ b/test/cpp/qps/client_sync.cc
@@ -101,7 +101,7 @@
     WaitToIssue(thread_idx);
     auto* stub = channels_[thread_idx % channels_.size()].get_stub();
     double start = Timer::Now();
-    GRPC_TIMER_SCOPE("SynchronousUnaryClient::ThreadFunc", 0);
+    GPR_TIMER_SCOPE("SynchronousUnaryClient::ThreadFunc", 0);
     grpc::ClientContext context;
     grpc::Status s =
         stub->UnaryCall(&context, request_, &responses_[thread_idx]);
@@ -138,7 +138,7 @@
 
   bool ThreadFunc(Histogram* histogram, size_t thread_idx) GRPC_OVERRIDE {
     WaitToIssue(thread_idx);
-    GRPC_TIMER_SCOPE("SynchronousStreamingClient::ThreadFunc", 0);
+    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.core.internal b/tools/doxygen/Doxyfile.core.internal
index 98d56f2..e742ec2 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -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 \
@@ -990,8 +989,6 @@
 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/api_trace.c \
 src/core/surface/byte_buffer.c \
 src/core/surface/byte_buffer_queue.c \
@@ -1068,6 +1065,7 @@
 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 \
@@ -1077,6 +1075,8 @@
 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 \
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index f2237e0..c16477c 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -12161,6 +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", 
@@ -12201,6 +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", 
@@ -12351,7 +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", 
@@ -12569,9 +12572,6 @@
       "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", 
@@ -12856,7 +12856,6 @@
       "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", 
@@ -13059,9 +13058,6 @@
       "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/statistics/census_interface.h", 
       "src/core/statistics/census_rpc_stats.h", 
       "src/core/surface/api_trace.c", 
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj b/vsprojects/vcxproj/gpr/gpr.vcxproj
index 4c3b36a..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">
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
index 69391b4..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>
@@ -200,6 +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>
@@ -245,6 +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 183edbc..28e38f6 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -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" />
@@ -575,10 +574,6 @@
     </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\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 66ce9ca..7ae7eca 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -292,12 +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\api_trace.c">
       <Filter>src\core\surface</Filter>
     </ClCompile>
@@ -725,9 +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>
@@ -896,9 +887,6 @@
     <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 b527179..3fde42b 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -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" />
@@ -514,10 +513,6 @@
     </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\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 7be3c9e..6e9b169 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -232,12 +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\api_trace.c">
       <Filter>src\core\surface</Filter>
     </ClCompile>
@@ -623,9 +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>
@@ -794,9 +785,6 @@
     <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>