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/*
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*
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* Copyright 2015 gRPC authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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/* This benchmark exists to show that byte-buffer copy is size-independent */
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#include <memory>
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#include <benchmark/benchmark.h>
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#include <grpc/byte_buffer.h>
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#include <grpc/slice.h>
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#include <grpcpp/impl/grpc_library.h>
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#include <grpcpp/support/byte_buffer.h>
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#include "test/core/util/test_config.h"
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#include "test/cpp/microbenchmarks/helpers.h"
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#include "test/cpp/util/test_config.h"
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namespace grpc {
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namespace testing {
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static void BM_ByteBuffer_Copy(benchmark::State& state) {
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int num_slices = state.range(0);
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size_t slice_size = state.range(1);
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std::vector<grpc::Slice> slices;
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while (num_slices > 0) {
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num_slices--;
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std::unique_ptr<char[]> buf(new char[slice_size]);
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memset(buf.get(), 0, slice_size);
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slices.emplace_back(buf.get(), slice_size);
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}
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grpc::ByteBuffer bb(slices.data(), num_slices);
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for (auto _ : state) {
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grpc::ByteBuffer cc(bb);
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}
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}
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BENCHMARK(BM_ByteBuffer_Copy)->Ranges({{1, 64}, {1, 1024 * 1024}});
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static void BM_ByteBufferReader_Next(benchmark::State& state) {
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const int num_slices = state.range(0);
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constexpr size_t kSliceSize = 16;
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std::vector<grpc_slice> slices;
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for (int i = 0; i < num_slices; ++i) {
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std::unique_ptr<char[]> buf(new char[kSliceSize]);
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slices.emplace_back(grpc_slice_from_copied_buffer(buf.get(), kSliceSize));
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}
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grpc_byte_buffer* bb = grpc_raw_byte_buffer_create(slices.data(), num_slices);
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grpc_byte_buffer_reader reader;
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GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, bb));
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for (auto _ : state) {
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grpc_slice* slice;
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if (GPR_UNLIKELY(!grpc_byte_buffer_reader_peek(&reader, &slice))) {
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grpc_byte_buffer_reader_destroy(&reader);
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GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, bb));
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continue;
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}
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}
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grpc_byte_buffer_reader_destroy(&reader);
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grpc_byte_buffer_destroy(bb);
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for (auto& slice : slices) {
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grpc_slice_unref(slice);
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}
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}
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BENCHMARK(BM_ByteBufferReader_Next)->Ranges({{64 * 1024, 1024 * 1024}});
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static void BM_ByteBufferReader_Peek(benchmark::State& state) {
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const int num_slices = state.range(0);
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constexpr size_t kSliceSize = 16;
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std::vector<grpc_slice> slices;
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for (int i = 0; i < num_slices; ++i) {
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std::unique_ptr<char[]> buf(new char[kSliceSize]);
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slices.emplace_back(grpc_slice_from_copied_buffer(buf.get(), kSliceSize));
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}
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grpc_byte_buffer* bb = grpc_raw_byte_buffer_create(slices.data(), num_slices);
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grpc_byte_buffer_reader reader;
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GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, bb));
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for (auto _ : state) {
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grpc_slice* slice;
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if (GPR_UNLIKELY(!grpc_byte_buffer_reader_peek(&reader, &slice))) {
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grpc_byte_buffer_reader_destroy(&reader);
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GPR_ASSERT(grpc_byte_buffer_reader_init(&reader, bb));
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continue;
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}
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}
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grpc_byte_buffer_reader_destroy(&reader);
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grpc_byte_buffer_destroy(bb);
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for (auto& slice : slices) {
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grpc_slice_unref(slice);
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}
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}
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BENCHMARK(BM_ByteBufferReader_Peek)->Ranges({{64 * 1024, 1024 * 1024}});
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} // namespace testing
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} // namespace grpc
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// Some distros have RunSpecifiedBenchmarks under the benchmark namespace,
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// and others do not. This allows us to support both modes.
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namespace benchmark {
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void RunTheBenchmarksNamespaced() { RunSpecifiedBenchmarks(); }
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} // namespace benchmark
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int main(int argc, char** argv) {
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grpc::testing::TestEnvironment env(&argc, argv);
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LibraryInitializer libInit;
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::benchmark::Initialize(&argc, argv);
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grpc::testing::InitTest(&argc, &argv, false);
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benchmark::RunTheBenchmarksNamespaced();
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return 0;
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}
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