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-rw-r--r--test/cpp/microbenchmarks/bm_closure.cc57
1 files changed, 57 insertions, 0 deletions
diff --git a/test/cpp/microbenchmarks/bm_closure.cc b/test/cpp/microbenchmarks/bm_closure.cc
index 586221945a..8d20744e81 100644
--- a/test/cpp/microbenchmarks/bm_closure.cc
+++ b/test/cpp/microbenchmarks/bm_closure.cc
@@ -35,6 +35,7 @@
#include <benchmark/benchmark.h>
#include <grpc/grpc.h>
+#include <sstream>
extern "C" {
#include "src/core/lib/iomgr/closure.h"
@@ -42,13 +43,51 @@ extern "C" {
#include "src/core/lib/iomgr/exec_ctx.h"
}
+#ifdef GPR_LOW_LEVEL_COUNTERS
+extern "C" gpr_atm gpr_mu_locks;
+#endif
+
static class InitializeStuff {
public:
InitializeStuff() { grpc_init(); }
~InitializeStuff() { grpc_shutdown(); }
} initialize_stuff;
+class TrackCounters {
+ public:
+ TrackCounters(benchmark::State& state) : state_(state) {}
+
+ ~TrackCounters() {
+ std::ostringstream out;
+#ifdef GPR_LOW_LEVEL_COUNTERS
+ out << " locks/iter:" << ((double)(gpr_atm_no_barrier_load(&gpr_mu_locks) -
+ mu_locks_at_start_) /
+ (double)state_.iterations())
+ << " atm_cas/iter:"
+ << ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_cas) -
+ atm_cas_at_start_) /
+ (double)state_.iterations())
+ << " atm_add/iter:"
+ << ((double)(gpr_atm_no_barrier_load(&gpr_counter_atm_add) -
+ atm_add_at_start_) /
+ (double)state_.iterations());
+#endif
+ state_.SetLabel(out.str());
+ }
+
+ private:
+ benchmark::State& state_;
+#ifdef GPR_LOW_LEVEL_COUNTERS
+ const size_t mu_locks_at_start_ = gpr_atm_no_barrier_load(&gpr_mu_locks);
+ const size_t atm_cas_at_start_ =
+ gpr_atm_no_barrier_load(&gpr_counter_atm_cas);
+ const size_t atm_add_at_start_ =
+ gpr_atm_no_barrier_load(&gpr_counter_atm_add);
+#endif
+};
+
static void BM_NoOpExecCtx(benchmark::State& state) {
+ TrackCounters track_counters(state);
while (state.KeepRunning()) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_exec_ctx_finish(&exec_ctx);
@@ -57,6 +96,7 @@ static void BM_NoOpExecCtx(benchmark::State& state) {
BENCHMARK(BM_NoOpExecCtx);
static void BM_WellFlushed(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
while (state.KeepRunning()) {
grpc_exec_ctx_flush(&exec_ctx);
@@ -68,6 +108,7 @@ BENCHMARK(BM_WellFlushed);
static void DoNothing(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {}
static void BM_ClosureInitAgainstExecCtx(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_closure c;
while (state.KeepRunning()) {
benchmark::DoNotOptimize(
@@ -77,6 +118,7 @@ static void BM_ClosureInitAgainstExecCtx(benchmark::State& state) {
BENCHMARK(BM_ClosureInitAgainstExecCtx);
static void BM_ClosureInitAgainstCombiner(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_combiner* combiner = grpc_combiner_create(NULL);
grpc_closure c;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
@@ -90,6 +132,7 @@ static void BM_ClosureInitAgainstCombiner(benchmark::State& state) {
BENCHMARK(BM_ClosureInitAgainstCombiner);
static void BM_ClosureRunOnExecCtx(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_closure c;
grpc_closure_init(&c, DoNothing, NULL, grpc_schedule_on_exec_ctx);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
@@ -102,6 +145,7 @@ static void BM_ClosureRunOnExecCtx(benchmark::State& state) {
BENCHMARK(BM_ClosureRunOnExecCtx);
static void BM_ClosureCreateAndRun(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
while (state.KeepRunning()) {
grpc_closure_run(&exec_ctx, grpc_closure_create(DoNothing, NULL,
@@ -113,6 +157,7 @@ static void BM_ClosureCreateAndRun(benchmark::State& state) {
BENCHMARK(BM_ClosureCreateAndRun);
static void BM_ClosureInitAndRun(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_closure c;
while (state.KeepRunning()) {
@@ -125,6 +170,7 @@ static void BM_ClosureInitAndRun(benchmark::State& state) {
BENCHMARK(BM_ClosureInitAndRun);
static void BM_ClosureSchedOnExecCtx(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_closure c;
grpc_closure_init(&c, DoNothing, NULL, grpc_schedule_on_exec_ctx);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
@@ -137,6 +183,7 @@ static void BM_ClosureSchedOnExecCtx(benchmark::State& state) {
BENCHMARK(BM_ClosureSchedOnExecCtx);
static void BM_ClosureSched2OnExecCtx(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_closure c1;
grpc_closure c2;
grpc_closure_init(&c1, DoNothing, NULL, grpc_schedule_on_exec_ctx);
@@ -152,6 +199,7 @@ static void BM_ClosureSched2OnExecCtx(benchmark::State& state) {
BENCHMARK(BM_ClosureSched2OnExecCtx);
static void BM_ClosureSched3OnExecCtx(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_closure c1;
grpc_closure c2;
grpc_closure c3;
@@ -170,6 +218,7 @@ static void BM_ClosureSched3OnExecCtx(benchmark::State& state) {
BENCHMARK(BM_ClosureSched3OnExecCtx);
static void BM_AcquireMutex(benchmark::State& state) {
+ TrackCounters track_counters(state);
// for comparison with the combiner stuff below
gpr_mu mu;
gpr_mu_init(&mu);
@@ -184,6 +233,7 @@ static void BM_AcquireMutex(benchmark::State& state) {
BENCHMARK(BM_AcquireMutex);
static void BM_ClosureSchedOnCombiner(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_combiner* combiner = grpc_combiner_create(NULL);
grpc_closure c;
grpc_closure_init(&c, DoNothing, NULL,
@@ -199,6 +249,7 @@ static void BM_ClosureSchedOnCombiner(benchmark::State& state) {
BENCHMARK(BM_ClosureSchedOnCombiner);
static void BM_ClosureSched2OnCombiner(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_combiner* combiner = grpc_combiner_create(NULL);
grpc_closure c1;
grpc_closure c2;
@@ -218,6 +269,7 @@ static void BM_ClosureSched2OnCombiner(benchmark::State& state) {
BENCHMARK(BM_ClosureSched2OnCombiner);
static void BM_ClosureSched3OnCombiner(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_combiner* combiner = grpc_combiner_create(NULL);
grpc_closure c1;
grpc_closure c2;
@@ -241,6 +293,7 @@ static void BM_ClosureSched3OnCombiner(benchmark::State& state) {
BENCHMARK(BM_ClosureSched3OnCombiner);
static void BM_ClosureSched2OnTwoCombiners(benchmark::State& state) {
+ TrackCounters track_counters(state);
grpc_combiner* combiner1 = grpc_combiner_create(NULL);
grpc_combiner* combiner2 = grpc_combiner_create(NULL);
grpc_closure c1;
@@ -262,6 +315,7 @@ static void BM_ClosureSched2OnTwoCombiners(benchmark::State& state) {
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;
@@ -322,6 +376,7 @@ class Rescheduler {
};
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);
@@ -330,6 +385,7 @@ static void BM_ClosureReschedOnExecCtx(benchmark::State& state) {
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));
@@ -341,6 +397,7 @@ static void BM_ClosureReschedOnCombiner(benchmark::State& state) {
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));
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-10 12:21:27 +0000