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/*
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*
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* Copyright 2015, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/* Test various closure related operations */
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#include <grpc/grpc.h>
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extern "C" {
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#include "src/core/lib/iomgr/closure.h"
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#include "src/core/lib/iomgr/combiner.h"
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#include "src/core/lib/iomgr/exec_ctx.h"
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#include "src/core/lib/support/spinlock.h"
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}
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#include "third_party/benchmark/include/benchmark/benchmark.h"
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#include <sstream>
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#ifdef GPR_LOW_LEVEL_COUNTERS
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extern "C" gpr_atm gpr_mu_locks;
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#endif
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static class InitializeStuff {
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public:
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InitializeStuff() { grpc_init(); }
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~InitializeStuff() { grpc_shutdown(); }
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} initialize_stuff;
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class TrackCounters {
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public:
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TrackCounters(benchmark::State& state) : state_(state) {}
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~TrackCounters() {
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std::ostringstream out;
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#ifdef GPR_LOW_LEVEL_COUNTERS
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out << " locks/iter:" << ((double)(gpr_atm_no_barrier_load(&gpr_mu_locks) -
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mu_locks_at_start_) /
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(double)state_.iterations())
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<< " atm_cas/iter:"
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<< ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_cas) -
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atm_cas_at_start_) /
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(double)state_.iterations())
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<< " atm_add/iter:"
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<< ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_add) -
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atm_add_at_start_) /
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(double)state_.iterations());
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#endif
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state_.SetLabel(out.str());
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}
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private:
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benchmark::State& state_;
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#ifdef GPR_LOW_LEVEL_COUNTERS
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const size_t mu_locks_at_start_ = gpr_atm_no_barrier_load(&gpr_mu_locks);
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const size_t atm_cas_at_start_ =
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gpr_atm_no_barrier_load(&gpr_counter_atm_cas);
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const size_t atm_add_at_start_ =
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gpr_atm_no_barrier_load(&gpr_counter_atm_add);
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#endif
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};
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static void BM_NoOpExecCtx(benchmark::State& state) {
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TrackCounters track_counters(state);
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while (state.KeepRunning()) {
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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grpc_exec_ctx_finish(&exec_ctx);
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}
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}
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BENCHMARK(BM_NoOpExecCtx);
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static void BM_WellFlushed(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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grpc_exec_ctx_flush(&exec_ctx);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_WellFlushed);
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static void DoNothing(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {}
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static void BM_ClosureInitAgainstExecCtx(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_closure c;
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while (state.KeepRunning()) {
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benchmark::DoNotOptimize(
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grpc_closure_init(&c, DoNothing, NULL, grpc_schedule_on_exec_ctx));
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}
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}
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BENCHMARK(BM_ClosureInitAgainstExecCtx);
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static void BM_ClosureInitAgainstCombiner(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_combiner* combiner = grpc_combiner_create(NULL);
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grpc_closure c;
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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benchmark::DoNotOptimize(grpc_closure_init(
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&c, DoNothing, NULL, grpc_combiner_scheduler(combiner, false)));
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}
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GRPC_COMBINER_UNREF(&exec_ctx, combiner, "finished");
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureInitAgainstCombiner);
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static void BM_ClosureRunOnExecCtx(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_closure c;
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grpc_closure_init(&c, DoNothing, NULL, grpc_schedule_on_exec_ctx);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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grpc_closure_run(&exec_ctx, &c, GRPC_ERROR_NONE);
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grpc_exec_ctx_flush(&exec_ctx);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureRunOnExecCtx);
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static void BM_ClosureCreateAndRun(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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grpc_closure_run(&exec_ctx, grpc_closure_create(DoNothing, NULL,
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grpc_schedule_on_exec_ctx),
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GRPC_ERROR_NONE);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureCreateAndRun);
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static void BM_ClosureInitAndRun(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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grpc_closure c;
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while (state.KeepRunning()) {
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grpc_closure_run(&exec_ctx, grpc_closure_init(&c, DoNothing, NULL,
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grpc_schedule_on_exec_ctx),
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GRPC_ERROR_NONE);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureInitAndRun);
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static void BM_ClosureSchedOnExecCtx(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_closure c;
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grpc_closure_init(&c, DoNothing, NULL, grpc_schedule_on_exec_ctx);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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grpc_closure_sched(&exec_ctx, &c, GRPC_ERROR_NONE);
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grpc_exec_ctx_flush(&exec_ctx);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureSchedOnExecCtx);
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static void BM_ClosureSched2OnExecCtx(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_closure c1;
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grpc_closure c2;
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grpc_closure_init(&c1, DoNothing, NULL, grpc_schedule_on_exec_ctx);
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grpc_closure_init(&c2, DoNothing, NULL, grpc_schedule_on_exec_ctx);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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grpc_closure_sched(&exec_ctx, &c1, GRPC_ERROR_NONE);
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grpc_closure_sched(&exec_ctx, &c2, GRPC_ERROR_NONE);
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grpc_exec_ctx_flush(&exec_ctx);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureSched2OnExecCtx);
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static void BM_ClosureSched3OnExecCtx(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_closure c1;
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grpc_closure c2;
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grpc_closure c3;
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grpc_closure_init(&c1, DoNothing, NULL, grpc_schedule_on_exec_ctx);
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grpc_closure_init(&c2, DoNothing, NULL, grpc_schedule_on_exec_ctx);
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grpc_closure_init(&c3, DoNothing, NULL, grpc_schedule_on_exec_ctx);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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grpc_closure_sched(&exec_ctx, &c1, GRPC_ERROR_NONE);
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grpc_closure_sched(&exec_ctx, &c2, GRPC_ERROR_NONE);
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grpc_closure_sched(&exec_ctx, &c3, GRPC_ERROR_NONE);
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grpc_exec_ctx_flush(&exec_ctx);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureSched3OnExecCtx);
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static void BM_AcquireMutex(benchmark::State& state) {
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TrackCounters track_counters(state);
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// for comparison with the combiner stuff below
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gpr_mu mu;
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gpr_mu_init(&mu);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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gpr_mu_lock(&mu);
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DoNothing(&exec_ctx, NULL, GRPC_ERROR_NONE);
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gpr_mu_unlock(&mu);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_AcquireMutex);
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static void BM_TryAcquireMutex(benchmark::State& state) {
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TrackCounters track_counters(state);
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// for comparison with the combiner stuff below
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gpr_mu mu;
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gpr_mu_init(&mu);
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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if (gpr_mu_trylock(&mu)) {
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DoNothing(&exec_ctx, NULL, GRPC_ERROR_NONE);
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gpr_mu_unlock(&mu);
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} else {
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abort();
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}
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_TryAcquireMutex);
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static void BM_AcquireSpinlock(benchmark::State& state) {
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TrackCounters track_counters(state);
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// for comparison with the combiner stuff below
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gpr_spinlock mu = GPR_SPINLOCK_INITIALIZER;
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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gpr_spinlock_lock(&mu);
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DoNothing(&exec_ctx, NULL, GRPC_ERROR_NONE);
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gpr_spinlock_unlock(&mu);
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_AcquireSpinlock);
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static void BM_TryAcquireSpinlock(benchmark::State& state) {
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TrackCounters track_counters(state);
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// for comparison with the combiner stuff below
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gpr_spinlock mu = GPR_SPINLOCK_INITIALIZER;
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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if (gpr_spinlock_trylock(&mu)) {
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DoNothing(&exec_ctx, NULL, GRPC_ERROR_NONE);
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gpr_spinlock_unlock(&mu);
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} else {
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abort();
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}
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}
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_TryAcquireSpinlock);
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static void BM_ClosureSchedOnCombiner(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_combiner* combiner = grpc_combiner_create(NULL);
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grpc_closure c;
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grpc_closure_init(&c, DoNothing, NULL,
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grpc_combiner_scheduler(combiner, false));
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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grpc_closure_sched(&exec_ctx, &c, GRPC_ERROR_NONE);
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grpc_exec_ctx_flush(&exec_ctx);
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}
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GRPC_COMBINER_UNREF(&exec_ctx, combiner, "finished");
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureSchedOnCombiner);
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static void BM_ClosureSched2OnCombiner(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_combiner* combiner = grpc_combiner_create(NULL);
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grpc_closure c1;
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grpc_closure c2;
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grpc_closure_init(&c1, DoNothing, NULL,
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grpc_combiner_scheduler(combiner, false));
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grpc_closure_init(&c2, DoNothing, NULL,
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grpc_combiner_scheduler(combiner, false));
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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while (state.KeepRunning()) {
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grpc_closure_sched(&exec_ctx, &c1, GRPC_ERROR_NONE);
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grpc_closure_sched(&exec_ctx, &c2, GRPC_ERROR_NONE);
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grpc_exec_ctx_flush(&exec_ctx);
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}
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GRPC_COMBINER_UNREF(&exec_ctx, combiner, "finished");
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grpc_exec_ctx_finish(&exec_ctx);
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}
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BENCHMARK(BM_ClosureSched2OnCombiner);
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static void BM_ClosureSched3OnCombiner(benchmark::State& state) {
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TrackCounters track_counters(state);
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grpc_combiner* combiner = grpc_combiner_create(NULL);
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grpc_closure c1;
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grpc_closure c2;
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grpc_closure c3;
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grpc_closure_init(&c1, DoNothing, NULL,
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grpc_combiner_scheduler(combiner, false));
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grpc_closure_init(&c2, DoNothing, NULL,
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grpc_combiner_scheduler(combiner, false));
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grpc_closure_init(&c3, DoNothing, NULL,
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grpc_combiner_scheduler(combiner, false));
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grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
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|
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while (state.KeepRunning()) {
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|
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grpc_closure_sched(&exec_ctx, &c1, GRPC_ERROR_NONE);
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|
|
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grpc_closure_sched(&exec_ctx, &c2, GRPC_ERROR_NONE);
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|
|
|
grpc_closure_sched(&exec_ctx, &c3, GRPC_ERROR_NONE);
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|
|
|
grpc_exec_ctx_flush(&exec_ctx);
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|
|
|
}
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|
|
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GRPC_COMBINER_UNREF(&exec_ctx, combiner, "finished");
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|
|
|
grpc_exec_ctx_finish(&exec_ctx);
|
|
|
|
}
|
|
|
|
BENCHMARK(BM_ClosureSched3OnCombiner);
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|
|
|
|
|
|
|
static void BM_ClosureSched2OnTwoCombiners(benchmark::State& state) {
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|
|
|
TrackCounters track_counters(state);
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|
|
|
grpc_combiner* combiner1 = grpc_combiner_create(NULL);
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|
|
|
grpc_combiner* combiner2 = grpc_combiner_create(NULL);
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|
|
|
grpc_closure c1;
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|
|
|
grpc_closure c2;
|
|
|
|
grpc_closure_init(&c1, DoNothing, NULL,
|
|
|
|
grpc_combiner_scheduler(combiner1, false));
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|
|
|
grpc_closure_init(&c2, DoNothing, NULL,
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|
|
|
grpc_combiner_scheduler(combiner2, false));
|
|
|
|
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
|
|
|
|
while (state.KeepRunning()) {
|
|
|
|
grpc_closure_sched(&exec_ctx, &c1, GRPC_ERROR_NONE);
|
|
|
|
grpc_closure_sched(&exec_ctx, &c2, GRPC_ERROR_NONE);
|
|
|
|
grpc_exec_ctx_flush(&exec_ctx);
|
|
|
|
}
|
|
|
|
GRPC_COMBINER_UNREF(&exec_ctx, combiner1, "finished");
|
|
|
|
GRPC_COMBINER_UNREF(&exec_ctx, combiner2, "finished");
|
|
|
|
grpc_exec_ctx_finish(&exec_ctx);
|
|
|
|
}
|
|
|
|
BENCHMARK(BM_ClosureSched2OnTwoCombiners);
|
|
|
|
|
|
|
|
static void BM_ClosureSched4OnTwoCombiners(benchmark::State& state) {
|
|
|
|
TrackCounters track_counters(state);
|
|
|
|
grpc_combiner* combiner1 = grpc_combiner_create(NULL);
|
|
|
|
grpc_combiner* combiner2 = grpc_combiner_create(NULL);
|
|
|
|
grpc_closure c1;
|
|
|
|
grpc_closure c2;
|
|
|
|
grpc_closure c3;
|
|
|
|
grpc_closure c4;
|
|
|
|
grpc_closure_init(&c1, DoNothing, NULL,
|
|
|
|
grpc_combiner_scheduler(combiner1, false));
|
|
|
|
grpc_closure_init(&c2, DoNothing, NULL,
|
|
|
|
grpc_combiner_scheduler(combiner2, false));
|
|
|
|
grpc_closure_init(&c3, DoNothing, NULL,
|
|
|
|
grpc_combiner_scheduler(combiner1, false));
|
|
|
|
grpc_closure_init(&c4, DoNothing, NULL,
|
|
|
|
grpc_combiner_scheduler(combiner2, false));
|
|
|
|
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
|
|
|
|
while (state.KeepRunning()) {
|
|
|
|
grpc_closure_sched(&exec_ctx, &c1, GRPC_ERROR_NONE);
|
|
|
|
grpc_closure_sched(&exec_ctx, &c2, GRPC_ERROR_NONE);
|
|
|
|
grpc_closure_sched(&exec_ctx, &c3, GRPC_ERROR_NONE);
|
|
|
|
grpc_closure_sched(&exec_ctx, &c4, GRPC_ERROR_NONE);
|
|
|
|
grpc_exec_ctx_flush(&exec_ctx);
|
|
|
|
}
|
|
|
|
GRPC_COMBINER_UNREF(&exec_ctx, combiner1, "finished");
|
|
|
|
GRPC_COMBINER_UNREF(&exec_ctx, combiner2, "finished");
|
|
|
|
grpc_exec_ctx_finish(&exec_ctx);
|
|
|
|
}
|
|
|
|
BENCHMARK(BM_ClosureSched4OnTwoCombiners);
|
|
|
|
|
|
|
|
// Helper that continuously reschedules the same closure against something until
|
|
|
|
// the benchmark is complete
|
|
|
|
class Rescheduler {
|
|
|
|
public:
|
|
|
|
Rescheduler(benchmark::State& state, grpc_closure_scheduler* scheduler)
|
|
|
|
: state_(state) {
|
|
|
|
grpc_closure_init(&closure_, Step, this, scheduler);
|
|
|
|
}
|
|
|
|
|
|
|
|
void ScheduleFirst(grpc_exec_ctx* exec_ctx) {
|
|
|
|
grpc_closure_sched(exec_ctx, &closure_, GRPC_ERROR_NONE);
|
|
|
|
}
|
|
|
|
|
|
|
|
void ScheduleFirstAgainstDifferentScheduler(
|
|
|
|
grpc_exec_ctx* exec_ctx, grpc_closure_scheduler* scheduler) {
|
|
|
|
grpc_closure_sched(exec_ctx, grpc_closure_create(Step, this, scheduler),
|
|
|
|
GRPC_ERROR_NONE);
|
|
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
benchmark::State& state_;
|
|
|
|
grpc_closure closure_;
|
|
|
|
|
|
|
|
static void Step(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {
|
|
|
|
Rescheduler* self = static_cast<Rescheduler*>(arg);
|
|
|
|
if (self->state_.KeepRunning()) {
|
|
|
|
grpc_closure_sched(exec_ctx, &self->closure_, GRPC_ERROR_NONE);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
static void BM_ClosureReschedOnExecCtx(benchmark::State& state) {
|
|
|
|
TrackCounters track_counters(state);
|
|
|
|
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
|
|
|
|
Rescheduler r(state, grpc_schedule_on_exec_ctx);
|
|
|
|
r.ScheduleFirst(&exec_ctx);
|
|
|
|
grpc_exec_ctx_finish(&exec_ctx);
|
|
|
|
}
|
|
|
|
BENCHMARK(BM_ClosureReschedOnExecCtx);
|
|
|
|
|
|
|
|
static void BM_ClosureReschedOnCombiner(benchmark::State& state) {
|
|
|
|
TrackCounters track_counters(state);
|
|
|
|
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
|
|
|
|
grpc_combiner* combiner = grpc_combiner_create(NULL);
|
|
|
|
Rescheduler r(state, grpc_combiner_scheduler(combiner, false));
|
|
|
|
r.ScheduleFirst(&exec_ctx);
|
|
|
|
grpc_exec_ctx_flush(&exec_ctx);
|
|
|
|
GRPC_COMBINER_UNREF(&exec_ctx, combiner, "finished");
|
|
|
|
grpc_exec_ctx_finish(&exec_ctx);
|
|
|
|
}
|
|
|
|
BENCHMARK(BM_ClosureReschedOnCombiner);
|
|
|
|
|
|
|
|
static void BM_ClosureReschedOnCombinerFinally(benchmark::State& state) {
|
|
|
|
TrackCounters track_counters(state);
|
|
|
|
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
|
|
|
|
grpc_combiner* combiner = grpc_combiner_create(NULL);
|
|
|
|
Rescheduler r(state, grpc_combiner_finally_scheduler(combiner, false));
|
|
|
|
r.ScheduleFirstAgainstDifferentScheduler(
|
|
|
|
&exec_ctx, grpc_combiner_scheduler(combiner, false));
|
|
|
|
grpc_exec_ctx_flush(&exec_ctx);
|
|
|
|
GRPC_COMBINER_UNREF(&exec_ctx, combiner, "finished");
|
|
|
|
grpc_exec_ctx_finish(&exec_ctx);
|
|
|
|
}
|
|
|
|
BENCHMARK(BM_ClosureReschedOnCombinerFinally);
|
|
|
|
|
|
|
|
BENCHMARK_MAIN();
|