Merge pull request #9984 from ctiller/poll-wakeup
Add some pollset benchmarks
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d0a65b4..65df5d7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -603,6 +603,9 @@
if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
add_dependencies(buildtests_cxx bm_metadata)
endif()
+if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
+add_dependencies(buildtests_cxx bm_pollset)
+endif()
add_dependencies(buildtests_cxx channel_arguments_test)
add_dependencies(buildtests_cxx channel_filter_test)
add_dependencies(buildtests_cxx cli_call_test)
@@ -8014,6 +8017,45 @@
endif()
endif (gRPC_BUILD_TESTS)
if (gRPC_BUILD_TESTS)
+if(_gRPC_PLATFORM_LINUX OR _gRPC_PLATFORM_MAC OR _gRPC_PLATFORM_POSIX)
+
+add_executable(bm_pollset
+ test/cpp/microbenchmarks/bm_pollset.cc
+ third_party/googletest/src/gtest-all.cc
+)
+
+
+target_include_directories(bm_pollset
+ PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
+ PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/include
+ PRIVATE ${BORINGSSL_ROOT_DIR}/include
+ PRIVATE ${PROTOBUF_ROOT_DIR}/src
+ PRIVATE ${BENCHMARK_ROOT_DIR}/include
+ PRIVATE ${ZLIB_ROOT_DIR}
+ PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/zlib
+ PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/third_party/gflags/include
+ PRIVATE third_party/googletest/include
+ PRIVATE third_party/googletest
+ PRIVATE ${_gRPC_PROTO_GENS_DIR}
+)
+
+target_link_libraries(bm_pollset
+ ${_gRPC_PROTOBUF_LIBRARIES}
+ ${_gRPC_ALLTARGETS_LIBRARIES}
+ grpc_benchmark
+ benchmark
+ grpc++_test_util
+ grpc_test_util
+ grpc++
+ grpc
+ gpr_test_util
+ gpr
+ ${_gRPC_GFLAGS_LIBRARIES}
+)
+
+endif()
+endif (gRPC_BUILD_TESTS)
+if (gRPC_BUILD_TESTS)
add_executable(channel_arguments_test
test/cpp/common/channel_arguments_test.cc
diff --git a/Makefile b/Makefile
index a9242dd..9e74ffb 100644
--- a/Makefile
+++ b/Makefile
@@ -1057,6 +1057,7 @@
bm_fullstack_trickle: $(BINDIR)/$(CONFIG)/bm_fullstack_trickle
bm_fullstack_unary_ping_pong: $(BINDIR)/$(CONFIG)/bm_fullstack_unary_ping_pong
bm_metadata: $(BINDIR)/$(CONFIG)/bm_metadata
+bm_pollset: $(BINDIR)/$(CONFIG)/bm_pollset
channel_arguments_test: $(BINDIR)/$(CONFIG)/channel_arguments_test
channel_filter_test: $(BINDIR)/$(CONFIG)/channel_filter_test
cli_call_test: $(BINDIR)/$(CONFIG)/cli_call_test
@@ -1478,6 +1479,7 @@
$(BINDIR)/$(CONFIG)/bm_fullstack_trickle \
$(BINDIR)/$(CONFIG)/bm_fullstack_unary_ping_pong \
$(BINDIR)/$(CONFIG)/bm_metadata \
+ $(BINDIR)/$(CONFIG)/bm_pollset \
$(BINDIR)/$(CONFIG)/channel_arguments_test \
$(BINDIR)/$(CONFIG)/channel_filter_test \
$(BINDIR)/$(CONFIG)/cli_call_test \
@@ -1593,6 +1595,7 @@
$(BINDIR)/$(CONFIG)/bm_fullstack_trickle \
$(BINDIR)/$(CONFIG)/bm_fullstack_unary_ping_pong \
$(BINDIR)/$(CONFIG)/bm_metadata \
+ $(BINDIR)/$(CONFIG)/bm_pollset \
$(BINDIR)/$(CONFIG)/channel_arguments_test \
$(BINDIR)/$(CONFIG)/channel_filter_test \
$(BINDIR)/$(CONFIG)/cli_call_test \
@@ -1943,6 +1946,8 @@
$(Q) $(BINDIR)/$(CONFIG)/bm_fullstack_unary_ping_pong || ( echo test bm_fullstack_unary_ping_pong failed ; exit 1 )
$(E) "[RUN] Testing bm_metadata"
$(Q) $(BINDIR)/$(CONFIG)/bm_metadata || ( echo test bm_metadata failed ; exit 1 )
+ $(E) "[RUN] Testing bm_pollset"
+ $(Q) $(BINDIR)/$(CONFIG)/bm_pollset || ( echo test bm_pollset failed ; exit 1 )
$(E) "[RUN] Testing channel_arguments_test"
$(Q) $(BINDIR)/$(CONFIG)/channel_arguments_test || ( echo test channel_arguments_test failed ; exit 1 )
$(E) "[RUN] Testing channel_filter_test"
@@ -13069,6 +13074,49 @@
endif
+BM_POLLSET_SRC = \
+ test/cpp/microbenchmarks/bm_pollset.cc \
+
+BM_POLLSET_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BM_POLLSET_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/bm_pollset: 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)/$(CONFIG)/bm_pollset: protobuf_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/bm_pollset: $(PROTOBUF_DEP) $(BM_POLLSET_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_benchmark.a $(LIBDIR)/$(CONFIG)/libbenchmark.a $(LIBDIR)/$(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) $(BM_POLLSET_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_benchmark.a $(LIBDIR)/$(CONFIG)/libbenchmark.a $(LIBDIR)/$(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)/bm_pollset
+
+endif
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/cpp/microbenchmarks/bm_pollset.o: $(LIBDIR)/$(CONFIG)/libgrpc_benchmark.a $(LIBDIR)/$(CONFIG)/libbenchmark.a $(LIBDIR)/$(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_bm_pollset: $(BM_POLLSET_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(BM_POLLSET_OBJS:.o=.dep)
+endif
+endif
+
+
CHANNEL_ARGUMENTS_TEST_SRC = \
test/cpp/common/channel_arguments_test.cc \
diff --git a/build.yaml b/build.yaml
index 38ba9e8..7c43df3 100644
--- a/build.yaml
+++ b/build.yaml
@@ -3270,6 +3270,26 @@
- mac
- linux
- posix
+- name: bm_pollset
+ build: test
+ language: c++
+ src:
+ - test/cpp/microbenchmarks/bm_pollset.cc
+ deps:
+ - grpc_benchmark
+ - benchmark
+ - grpc++_test_util
+ - grpc_test_util
+ - grpc++
+ - grpc
+ - gpr_test_util
+ - gpr
+ args:
+ - --benchmark_min_time=0
+ platforms:
+ - mac
+ - linux
+ - posix
- name: channel_arguments_test
gtest: true
build: test
diff --git a/test/cpp/microbenchmarks/bm_metadata.cc b/test/cpp/microbenchmarks/bm_metadata.cc
index ee3dec2..34874b5 100644
--- a/test/cpp/microbenchmarks/bm_metadata.cc
+++ b/test/cpp/microbenchmarks/bm_metadata.cc
@@ -1,6 +1,6 @@
/*
*
- * Copyright 2015, Google Inc.
+ * Copyright 2017, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
diff --git a/test/cpp/microbenchmarks/bm_pollset.cc b/test/cpp/microbenchmarks/bm_pollset.cc
new file mode 100644
index 0000000..0f3d3ce
--- /dev/null
+++ b/test/cpp/microbenchmarks/bm_pollset.cc
@@ -0,0 +1,254 @@
+/*
+ *
+ * Copyright 2017, 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.
+ *
+ */
+
+/* Test out pollset latencies */
+
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/useful.h>
+
+extern "C" {
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/iomgr/port.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
+}
+
+#include "test/cpp/microbenchmarks/helpers.h"
+#include "third_party/benchmark/include/benchmark/benchmark.h"
+
+#include <string.h>
+
+#ifdef GRPC_LINUX_MULTIPOLL_WITH_EPOLL
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
+#include <unistd.h>
+#endif
+
+auto& force_library_initialization = Library::get();
+
+static void shutdown_ps(grpc_exec_ctx* exec_ctx, void* ps, grpc_error* error) {
+ grpc_pollset_destroy(static_cast<grpc_pollset*>(ps));
+}
+
+static void BM_CreateDestroyPollset(benchmark::State& state) {
+ TrackCounters track_counters;
+ size_t ps_sz = grpc_pollset_size();
+ grpc_pollset* ps = static_cast<grpc_pollset*>(gpr_malloc(ps_sz));
+ gpr_mu* mu;
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_closure shutdown_ps_closure;
+ grpc_closure_init(&shutdown_ps_closure, shutdown_ps, ps,
+ grpc_schedule_on_exec_ctx);
+ while (state.KeepRunning()) {
+ memset(ps, 0, ps_sz);
+ grpc_pollset_init(ps, &mu);
+ gpr_mu_lock(mu);
+ grpc_pollset_shutdown(&exec_ctx, ps, &shutdown_ps_closure);
+ gpr_mu_unlock(mu);
+ grpc_exec_ctx_flush(&exec_ctx);
+ }
+ grpc_exec_ctx_finish(&exec_ctx);
+ gpr_free(ps);
+ track_counters.Finish(state);
+}
+BENCHMARK(BM_CreateDestroyPollset);
+
+#ifdef GRPC_LINUX_MULTIPOLL_WITH_EPOLL
+static void BM_PollEmptyPollset_SpeedOfLight(benchmark::State& state) {
+ // equivalent to BM_PollEmptyPollset, but just use the OS primitives to guage
+ // what the speed of light would be if we abstracted perfectly
+ TrackCounters track_counters;
+ int epfd = epoll_create1(0);
+ GPR_ASSERT(epfd != -1);
+ size_t nev = state.range(0);
+ size_t nfd = state.range(1);
+ epoll_event* ev = new epoll_event[nev];
+ std::vector<int> fds;
+ for (size_t i = 0; i < nfd; i++) {
+ fds.push_back(eventfd(0, 0));
+ epoll_event ev;
+ ev.events = EPOLLIN;
+ epoll_ctl(epfd, EPOLL_CTL_ADD, fds.back(), &ev);
+ }
+ while (state.KeepRunning()) {
+ epoll_wait(epfd, ev, nev, 0);
+ }
+ for (auto fd : fds) {
+ close(fd);
+ }
+ close(epfd);
+ delete[] ev;
+ track_counters.Finish(state);
+}
+BENCHMARK(BM_PollEmptyPollset_SpeedOfLight)
+ ->Args({1, 0})
+ ->Args({1, 1})
+ ->Args({1, 10})
+ ->Args({1, 100})
+ ->Args({1, 1000})
+ ->Args({1, 10000})
+ ->Args({1, 100000})
+ ->Args({10, 1})
+ ->Args({100, 1})
+ ->Args({1000, 1});
+#endif
+
+static void BM_PollEmptyPollset(benchmark::State& state) {
+ TrackCounters track_counters;
+ size_t ps_sz = grpc_pollset_size();
+ grpc_pollset* ps = static_cast<grpc_pollset*>(gpr_zalloc(ps_sz));
+ gpr_mu* mu;
+ grpc_pollset_init(ps, &mu);
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ gpr_timespec now = gpr_time_0(GPR_CLOCK_MONOTONIC);
+ gpr_timespec deadline = gpr_inf_past(GPR_CLOCK_MONOTONIC);
+ gpr_mu_lock(mu);
+ while (state.KeepRunning()) {
+ grpc_pollset_worker* worker;
+ GRPC_ERROR_UNREF(grpc_pollset_work(&exec_ctx, ps, &worker, now, deadline));
+ }
+ grpc_closure shutdown_ps_closure;
+ grpc_closure_init(&shutdown_ps_closure, shutdown_ps, ps,
+ grpc_schedule_on_exec_ctx);
+ grpc_pollset_shutdown(&exec_ctx, ps, &shutdown_ps_closure);
+ gpr_mu_unlock(mu);
+ grpc_exec_ctx_finish(&exec_ctx);
+ gpr_free(ps);
+ track_counters.Finish(state);
+}
+BENCHMARK(BM_PollEmptyPollset);
+
+class Closure : public grpc_closure {
+ public:
+ virtual ~Closure() {}
+};
+
+template <class F>
+Closure* MakeClosure(F f, grpc_closure_scheduler* scheduler) {
+ struct C : public Closure {
+ C(F f, grpc_closure_scheduler* scheduler) : f_(f) {
+ grpc_closure_init(this, C::cbfn, this, scheduler);
+ }
+ static void cbfn(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {
+ C* p = static_cast<C*>(arg);
+ p->f_();
+ }
+ F f_;
+ };
+ return new C(f, scheduler);
+}
+
+#ifdef GRPC_LINUX_MULTIPOLL_WITH_EPOLL
+static void BM_SingleThreadPollOneFd_SpeedOfLight(benchmark::State& state) {
+ // equivalent to BM_PollEmptyPollset, but just use the OS primitives to guage
+ // what the speed of light would be if we abstracted perfectly
+ TrackCounters track_counters;
+ int epfd = epoll_create1(0);
+ GPR_ASSERT(epfd != -1);
+ epoll_event ev[100];
+ int fd = eventfd(0, EFD_NONBLOCK);
+ ev[0].events = EPOLLIN;
+ epoll_ctl(epfd, EPOLL_CTL_ADD, fd, &ev[0]);
+ while (state.KeepRunning()) {
+ int err;
+ do {
+ err = eventfd_write(fd, 1);
+ } while (err < 0 && errno == EINTR);
+ GPR_ASSERT(err == 0);
+ do {
+ err = epoll_wait(epfd, ev, GPR_ARRAY_SIZE(ev), 0);
+ } while (err < 0 && errno == EINTR);
+ GPR_ASSERT(err == 1);
+ eventfd_t value;
+ do {
+ err = eventfd_read(fd, &value);
+ } while (err < 0 && errno == EINTR);
+ GPR_ASSERT(err == 0);
+ }
+ close(fd);
+ close(epfd);
+ track_counters.Finish(state);
+}
+BENCHMARK(BM_SingleThreadPollOneFd_SpeedOfLight);
+#endif
+
+static void BM_SingleThreadPollOneFd(benchmark::State& state) {
+ TrackCounters track_counters;
+ size_t ps_sz = grpc_pollset_size();
+ grpc_pollset* ps = static_cast<grpc_pollset*>(gpr_zalloc(ps_sz));
+ gpr_mu* mu;
+ grpc_pollset_init(ps, &mu);
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ gpr_timespec now = gpr_time_0(GPR_CLOCK_MONOTONIC);
+ gpr_timespec deadline = gpr_inf_future(GPR_CLOCK_MONOTONIC);
+ grpc_wakeup_fd wakeup_fd;
+ GRPC_ERROR_UNREF(grpc_wakeup_fd_init(&wakeup_fd));
+ grpc_fd* wakeup = grpc_fd_create(wakeup_fd.read_fd, "wakeup_read");
+ grpc_pollset_add_fd(&exec_ctx, ps, wakeup);
+ bool done = false;
+ Closure* continue_closure = MakeClosure(
+ [&]() {
+ GRPC_ERROR_UNREF(grpc_wakeup_fd_consume_wakeup(&wakeup_fd));
+ if (!state.KeepRunning()) {
+ done = true;
+ return;
+ }
+ GRPC_ERROR_UNREF(grpc_wakeup_fd_wakeup(&wakeup_fd));
+ grpc_fd_notify_on_read(&exec_ctx, wakeup, continue_closure);
+ },
+ grpc_schedule_on_exec_ctx);
+ GRPC_ERROR_UNREF(grpc_wakeup_fd_wakeup(&wakeup_fd));
+ grpc_fd_notify_on_read(&exec_ctx, wakeup, continue_closure);
+ gpr_mu_lock(mu);
+ while (!done) {
+ grpc_pollset_worker* worker;
+ GRPC_ERROR_UNREF(grpc_pollset_work(&exec_ctx, ps, &worker, now, deadline));
+ }
+ grpc_fd_orphan(&exec_ctx, wakeup, NULL, NULL, "done");
+ wakeup_fd.read_fd = 0;
+ grpc_closure shutdown_ps_closure;
+ grpc_closure_init(&shutdown_ps_closure, shutdown_ps, ps,
+ grpc_schedule_on_exec_ctx);
+ grpc_pollset_shutdown(&exec_ctx, ps, &shutdown_ps_closure);
+ gpr_mu_unlock(mu);
+ grpc_exec_ctx_finish(&exec_ctx);
+ grpc_wakeup_fd_destroy(&wakeup_fd);
+ gpr_free(ps);
+ track_counters.Finish(state);
+ delete continue_closure;
+}
+BENCHMARK(BM_SingleThreadPollOneFd);
+
+BENCHMARK_MAIN();
diff --git a/tools/profiling/microbenchmarks/bm_json.py b/tools/profiling/microbenchmarks/bm_json.py
index c48a63b..4695f82 100644
--- a/tools/profiling/microbenchmarks/bm_json.py
+++ b/tools/profiling/microbenchmarks/bm_json.py
@@ -98,6 +98,10 @@
'tpl': [],
'dyn': ['request_size'],
},
+ 'BM_PollEmptyPollset_SpeedOfLight': {
+ 'tpl': [],
+ 'dyn': ['request_size', 'request_count'],
+ }
}
def numericalize(s):
diff --git a/tools/run_tests/generated/sources_and_headers.json b/tools/run_tests/generated/sources_and_headers.json
index 767c2b2..c0cd6c0 100644
--- a/tools/run_tests/generated/sources_and_headers.json
+++ b/tools/run_tests/generated/sources_and_headers.json
@@ -2641,6 +2641,27 @@
},
{
"deps": [
+ "benchmark",
+ "gpr",
+ "gpr_test_util",
+ "grpc",
+ "grpc++",
+ "grpc++_test_util",
+ "grpc_benchmark",
+ "grpc_test_util"
+ ],
+ "headers": [],
+ "is_filegroup": false,
+ "language": "c++",
+ "name": "bm_pollset",
+ "src": [
+ "test/cpp/microbenchmarks/bm_pollset.cc"
+ ],
+ "third_party": false,
+ "type": "target"
+ },
+ {
+ "deps": [
"gpr",
"grpc",
"grpc++"
diff --git a/tools/run_tests/generated/tests.json b/tools/run_tests/generated/tests.json
index fed5973..afb57d4 100644
--- a/tools/run_tests/generated/tests.json
+++ b/tools/run_tests/generated/tests.json
@@ -2848,6 +2848,28 @@
]
},
{
+ "args": [
+ "--benchmark_min_time=0"
+ ],
+ "ci_platforms": [
+ "linux",
+ "mac",
+ "posix"
+ ],
+ "cpu_cost": 1.0,
+ "exclude_configs": [],
+ "exclude_iomgrs": [],
+ "flaky": false,
+ "gtest": false,
+ "language": "c++",
+ "name": "bm_pollset",
+ "platforms": [
+ "linux",
+ "mac",
+ "posix"
+ ]
+ },
+ {
"args": [],
"ci_platforms": [
"linux",