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grpc/test/cpp/microbenchmarks/bm_chttp2_transport.cc

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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/* Microbenchmarks around CHTTP2 transport operations */
#include <string.h>
#include <memory>
#include <queue>
#include <sstream>
#include <benchmark/benchmark.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/string_util.h>
#include <grpcpp/support/channel_arguments.h>
#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
#include "src/core/ext/transport/chttp2/transport/internal.h"
#include "src/core/lib/iomgr/closure.h"
#include "src/core/lib/resource_quota/api.h"
#include "src/core/lib/slice/slice_internal.h"
#include "test/core/util/test_config.h"
#include "test/cpp/microbenchmarks/helpers.h"
#include "test/cpp/util/test_config.h"
static auto* g_memory_allocator = new grpc_core::MemoryAllocator(
grpc_core::ResourceQuota::Default()->memory_quota()->CreateMemoryAllocator(
"test"));
////////////////////////////////////////////////////////////////////////////////
// Helper classes
//
class PhonyEndpoint : public grpc_endpoint {
public:
PhonyEndpoint() {
static const grpc_endpoint_vtable my_vtable = {read,
write,
add_to_pollset,
add_to_pollset_set,
delete_from_pollset_set,
shutdown,
destroy,
get_peer,
get_local_address,
get_fd,
can_track_err};
grpc_endpoint::vtable = &my_vtable;
}
void PushInput(grpc_slice slice) {
if (read_cb_ == nullptr) {
GPR_ASSERT(!have_slice_);
buffered_slice_ = slice;
have_slice_ = true;
return;
}
grpc_slice_buffer_add(slices_, slice);
grpc_core::ExecCtx::Run(DEBUG_LOCATION, read_cb_, GRPC_ERROR_NONE);
read_cb_ = nullptr;
}
private:
grpc_closure* read_cb_ = nullptr;
grpc_slice_buffer* slices_ = nullptr;
bool have_slice_ = false;
grpc_slice buffered_slice_;
void QueueRead(grpc_slice_buffer* slices, grpc_closure* cb) {
GPR_ASSERT(read_cb_ == nullptr);
if (have_slice_) {
have_slice_ = false;
grpc_slice_buffer_add(slices, buffered_slice_);
grpc_core::ExecCtx::Run(DEBUG_LOCATION, cb, GRPC_ERROR_NONE);
return;
}
read_cb_ = cb;
slices_ = slices;
}
static void read(grpc_endpoint* ep, grpc_slice_buffer* slices,
grpc_closure* cb, bool /*urgent*/,
int /*min_progress_size*/) {
static_cast<PhonyEndpoint*>(ep)->QueueRead(slices, cb);
}
static void write(grpc_endpoint* /*ep*/, grpc_slice_buffer* /*slices*/,
grpc_closure* cb, void* /*arg*/, int /*max_frame_size*/) {
grpc_core::ExecCtx::Run(DEBUG_LOCATION, cb, GRPC_ERROR_NONE);
}
static void add_to_pollset(grpc_endpoint* /*ep*/, grpc_pollset* /*pollset*/) {
}
static void add_to_pollset_set(grpc_endpoint* /*ep*/,
grpc_pollset_set* /*pollset*/) {}
static void delete_from_pollset_set(grpc_endpoint* /*ep*/,
grpc_pollset_set* /*pollset*/) {}
static void shutdown(grpc_endpoint* ep, grpc_error_handle why) {
grpc_core::ExecCtx::Run(DEBUG_LOCATION,
static_cast<PhonyEndpoint*>(ep)->read_cb_, why);
}
static void destroy(grpc_endpoint* ep) {
delete static_cast<PhonyEndpoint*>(ep);
}
static absl::string_view get_peer(grpc_endpoint* /*ep*/) { return "test"; }
static absl::string_view get_local_address(grpc_endpoint* /*ep*/) {
return "test";
}
static int get_fd(grpc_endpoint* /*ep*/) { return 0; }
static bool can_track_err(grpc_endpoint* /*ep*/) { return false; }
};
class Fixture {
public:
Fixture(const grpc::ChannelArguments& args, bool client) {
grpc_channel_args c_args = args.c_channel_args();
ep_ = new PhonyEndpoint;
auto final_args = grpc_core::CoreConfiguration::Get()
.channel_args_preconditioning()
.PreconditionChannelArgs(&c_args);
t_ = grpc_create_chttp2_transport(final_args, ep_, client);
grpc_chttp2_transport_start_reading(t_, nullptr, nullptr, nullptr);
FlushExecCtx();
}
void FlushExecCtx() { grpc_core::ExecCtx::Get()->Flush(); }
~Fixture() { grpc_transport_destroy(t_); }
grpc_chttp2_transport* chttp2_transport() {
return reinterpret_cast<grpc_chttp2_transport*>(t_);
}
grpc_transport* transport() { return t_; }
void PushInput(grpc_slice slice) { ep_->PushInput(slice); }
private:
PhonyEndpoint* ep_;
grpc_transport* t_;
};
class TestClosure : public grpc_closure {
public:
virtual ~TestClosure() {}
};
template <class F>
std::unique_ptr<TestClosure> MakeTestClosure(F f) {
struct C : public TestClosure {
explicit C(const F& f) : f_(f) {
GRPC_CLOSURE_INIT(this, Execute, this, nullptr);
}
F f_;
static void Execute(void* arg, grpc_error_handle error) {
static_cast<C*>(arg)->f_(error);
}
};
return std::unique_ptr<TestClosure>(new C(f));
}
template <class F>
grpc_closure* MakeOnceClosure(F f) {
struct C : public grpc_closure {
explicit C(const F& f) : f_(f) {}
F f_;
static void Execute(void* arg, grpc_error_handle error) {
static_cast<C*>(arg)->f_(error);
delete static_cast<C*>(arg);
}
};
auto* c = new C{f};
return GRPC_CLOSURE_INIT(c, C::Execute, c, nullptr);
}
class Stream {
public:
explicit Stream(Fixture* f) : f_(f) {
stream_size_ = grpc_transport_stream_size(f->transport());
stream_ = gpr_malloc(stream_size_);
arena_ = grpc_core::Arena::Create(4096, g_memory_allocator);
}
~Stream() {
gpr_event_wait(&done_, gpr_inf_future(GPR_CLOCK_REALTIME));
gpr_free(stream_);
arena_->Destroy();
}
void Init(benchmark::State& state) {
GRPC_STREAM_REF_INIT(&refcount_, 1, &Stream::FinishDestroy, this,
"test_stream");
gpr_event_init(&done_);
memset(stream_, 0, stream_size_);
if ((state.iterations() & 0xffff) == 0) {
arena_->Destroy();
arena_ = grpc_core::Arena::Create(4096, g_memory_allocator);
}
grpc_transport_init_stream(f_->transport(),
static_cast<grpc_stream*>(stream_), &refcount_,
nullptr, arena_);
}
void DestroyThen(grpc_closure* closure) {
destroy_closure_ = closure;
#ifndef NDEBUG
grpc_stream_unref(&refcount_, "DestroyThen");
#else
grpc_stream_unref(&refcount_);
#endif
}
void Op(grpc_transport_stream_op_batch* op) {
grpc_transport_perform_stream_op(f_->transport(),
static_cast<grpc_stream*>(stream_), op);
}
grpc_chttp2_stream* chttp2_stream() {
return static_cast<grpc_chttp2_stream*>(stream_);
}
private:
static void FinishDestroy(void* arg, grpc_error_handle /*error*/) {
auto stream = static_cast<Stream*>(arg);
grpc_transport_destroy_stream(stream->f_->transport(),
static_cast<grpc_stream*>(stream->stream_),
stream->destroy_closure_);
gpr_event_set(&stream->done_, reinterpret_cast<void*>(1));
}
Fixture* f_;
grpc_stream_refcount refcount_;
grpc_core::Arena* arena_;
size_t stream_size_;
void* stream_;
grpc_closure* destroy_closure_ = nullptr;
gpr_event done_;
};
////////////////////////////////////////////////////////////////////////////////
// Benchmarks
//
std::vector<std::unique_ptr<gpr_event>> done_events;
static void BM_StreamCreateDestroy(benchmark::State& state) {
grpc_core::ExecCtx exec_ctx;
TrackCounters track_counters;
Fixture f(grpc::ChannelArguments(), true);
auto* s = new Stream(&f);
grpc_transport_stream_op_batch op;
grpc_transport_stream_op_batch_payload op_payload(nullptr);
op = {};
op.cancel_stream = true;
op.payload = &op_payload;
op_payload.cancel_stream.cancel_error = GRPC_ERROR_CANCELLED;
std::unique_ptr<TestClosure> next =
MakeTestClosure([&, s](grpc_error_handle /*error*/) {
if (!state.KeepRunning()) {
delete s;
return;
}
s->Init(state);
s->Op(&op);
s->DestroyThen(next.get());
});
grpc_core::Closure::Run(DEBUG_LOCATION, next.get(), GRPC_ERROR_NONE);
f.FlushExecCtx();
track_counters.Finish(state);
}
BENCHMARK(BM_StreamCreateDestroy);
class RepresentativeClientInitialMetadata {
public:
static void Prepare(grpc_metadata_batch* b) {
b->Set(grpc_core::HttpSchemeMetadata(),
grpc_core::HttpSchemeMetadata::kHttp);
b->Set(grpc_core::HttpMethodMetadata(),
grpc_core::HttpMethodMetadata::kPost);
b->Set(grpc_core::HttpPathMetadata(),
grpc_core::Slice(grpc_core::StaticSlice::FromStaticString(
"/foo/bar/bm_chttp2_transport")));
b->Set(grpc_core::HttpAuthorityMetadata(),
grpc_core::Slice(grpc_core::StaticSlice::FromStaticString(
"foo.test.google.fr:1234")));
b->Set(
grpc_core::GrpcAcceptEncodingMetadata(),
grpc_core::CompressionAlgorithmSet(
{GRPC_COMPRESS_NONE, GRPC_COMPRESS_DEFLATE, GRPC_COMPRESS_GZIP}));
b->Set(grpc_core::TeMetadata(), grpc_core::TeMetadata::kTrailers);
b->Set(grpc_core::ContentTypeMetadata(),
grpc_core::ContentTypeMetadata::kApplicationGrpc);
b->Set(grpc_core::UserAgentMetadata(),
grpc_core::Slice(grpc_core::StaticSlice::FromStaticString(
"grpc-c/3.0.0-dev (linux; chttp2; green)")));
}
};
template <class Metadata>
static void BM_StreamCreateSendInitialMetadataDestroy(benchmark::State& state) {
TrackCounters track_counters;
grpc_core::ExecCtx exec_ctx;
Fixture f(grpc::ChannelArguments(), true);
auto* s = new Stream(&f);
grpc_transport_stream_op_batch op;
grpc_transport_stream_op_batch_payload op_payload(nullptr);
std::unique_ptr<TestClosure> start;
std::unique_ptr<TestClosure> done;
auto reset_op = [&]() {
op = {};
op.payload = &op_payload;
};
auto arena = grpc_core::MakeScopedArena(1024, g_memory_allocator);
grpc_metadata_batch b(arena.get());
Metadata::Prepare(&b);
f.FlushExecCtx();
gpr_event bm_done;
gpr_event_init(&bm_done);
start = MakeTestClosure([&, s](grpc_error_handle /*error*/) {
if (!state.KeepRunning()) {
delete s;
gpr_event_set(&bm_done, (void*)1);
return;
}
s->Init(state);
reset_op();
op.on_complete = done.get();
op.send_initial_metadata = true;
op.payload->send_initial_metadata.send_initial_metadata = &b;
s->Op(&op);
});
done = MakeTestClosure([&](grpc_error_handle /*error*/) {
reset_op();
op.cancel_stream = true;
op.payload->cancel_stream.cancel_error = GRPC_ERROR_CANCELLED;
s->Op(&op);
s->DestroyThen(start.get());
});
grpc_core::ExecCtx::Run(DEBUG_LOCATION, start.get(), GRPC_ERROR_NONE);
f.FlushExecCtx();
gpr_event_wait(&bm_done, gpr_inf_future(GPR_CLOCK_REALTIME));
track_counters.Finish(state);
}
BENCHMARK_TEMPLATE(BM_StreamCreateSendInitialMetadataDestroy,
RepresentativeClientInitialMetadata);
static void BM_TransportEmptyOp(benchmark::State& state) {
TrackCounters track_counters;
grpc_core::ExecCtx exec_ctx;
Fixture f(grpc::ChannelArguments(), true);
auto* s = new Stream(&f);
s->Init(state);
grpc_transport_stream_op_batch op;
grpc_transport_stream_op_batch_payload op_payload(nullptr);
auto reset_op = [&]() {
op = {};
op.payload = &op_payload;
};
std::unique_ptr<TestClosure> c =
MakeTestClosure([&](grpc_error_handle /*error*/) {
if (!state.KeepRunning()) return;
reset_op();
op.on_complete = c.get();
s->Op(&op);
});
grpc_core::ExecCtx::Run(DEBUG_LOCATION, c.get(), GRPC_ERROR_NONE);
f.FlushExecCtx();
reset_op();
op.cancel_stream = true;
op_payload.cancel_stream.cancel_error = GRPC_ERROR_CANCELLED;
gpr_event* stream_cancel_done = new gpr_event;
gpr_event_init(stream_cancel_done);
std::unique_ptr<TestClosure> stream_cancel_closure =
MakeTestClosure([&](grpc_error_handle error) {
GPR_ASSERT(error.ok());
gpr_event_set(stream_cancel_done, reinterpret_cast<void*>(1));
});
op.on_complete = stream_cancel_closure.get();
s->Op(&op);
f.FlushExecCtx();
gpr_event_wait(stream_cancel_done, gpr_inf_future(GPR_CLOCK_REALTIME));
done_events.emplace_back(stream_cancel_done);
s->DestroyThen(
MakeOnceClosure([s](grpc_error_handle /*error*/) { delete s; }));
f.FlushExecCtx();
track_counters.Finish(state);
}
BENCHMARK(BM_TransportEmptyOp);
// Some distros have RunSpecifiedBenchmarks under the benchmark namespace,
// and others do not. This allows us to support both modes.
namespace benchmark {
void RunTheBenchmarksNamespaced() { RunSpecifiedBenchmarks(); }
} // namespace benchmark
int main(int argc, char** argv) {
grpc::testing::TestEnvironment env(&argc, argv);
LibraryInitializer libInit;
::benchmark::Initialize(&argc, argv);
grpc::testing::InitTest(&argc, &argv, false);
benchmark::RunTheBenchmarksNamespaced();
return 0;
}