1 /*
2 *
3 * Copyright 2015 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19 /* This benchmark exists to show that byte-buffer copy is size-independent */
20
21 #include <memory>
22
23 #include <benchmark/benchmark.h>
24 #include <grpcpp/impl/grpc_library.h>
25 #include <grpcpp/support/byte_buffer.h>
26
27 #include "test/core/util/test_config.h"
28 #include "test/cpp/microbenchmarks/helpers.h"
29 #include "test/cpp/util/test_config.h"
30
31 namespace grpc {
32 namespace testing {
33
BM_ByteBuffer_Copy(benchmark::State & state)34 static void BM_ByteBuffer_Copy(benchmark::State& state) {
35 int num_slices = state.range(0);
36 size_t slice_size = state.range(1);
37 std::vector<grpc::Slice> slices;
38 while (num_slices > 0) {
39 num_slices--;
40 std::unique_ptr<char[]> buf(new char[slice_size]);
41 memset(buf.get(), 0, slice_size);
42 slices.emplace_back(buf.get(), slice_size);
43 }
44 grpc::ByteBuffer bb(slices.data(), num_slices);
45 for (auto _ : state) {
46 grpc::ByteBuffer cc(bb);
47 }
48 }
49 BENCHMARK(BM_ByteBuffer_Copy)->Ranges({{1, 64}, {1, 1024 * 1024}});
50
BM_ByteBufferReader_Next(benchmark::State & state)51 static void BM_ByteBufferReader_Next(benchmark::State& state) {
52 const int num_slices = state.range(0);
53 constexpr size_t kSliceSize = 16;
54 std::vector<grpc_slice> slices;
55 for (int i = 0; i < num_slices; ++i) {
56 std::unique_ptr<char[]> buf(new char[kSliceSize]);
57 slices.emplace_back(g_core_codegen_interface->grpc_slice_from_copied_buffer(
58 buf.get(), kSliceSize));
59 }
60 grpc_byte_buffer* bb = g_core_codegen_interface->grpc_raw_byte_buffer_create(
61 slices.data(), num_slices);
62 grpc_byte_buffer_reader reader;
63 GPR_ASSERT(
64 g_core_codegen_interface->grpc_byte_buffer_reader_init(&reader, bb));
65 for (auto _ : state) {
66 grpc_slice* slice;
67 if (GPR_UNLIKELY(!g_core_codegen_interface->grpc_byte_buffer_reader_peek(
68 &reader, &slice))) {
69 g_core_codegen_interface->grpc_byte_buffer_reader_destroy(&reader);
70 GPR_ASSERT(
71 g_core_codegen_interface->grpc_byte_buffer_reader_init(&reader, bb));
72 continue;
73 }
74 }
75
76 g_core_codegen_interface->grpc_byte_buffer_reader_destroy(&reader);
77 g_core_codegen_interface->grpc_byte_buffer_destroy(bb);
78 for (auto& slice : slices) {
79 g_core_codegen_interface->grpc_slice_unref(slice);
80 }
81 }
82 BENCHMARK(BM_ByteBufferReader_Next)->Ranges({{64 * 1024, 1024 * 1024}});
83
BM_ByteBufferReader_Peek(benchmark::State & state)84 static void BM_ByteBufferReader_Peek(benchmark::State& state) {
85 const int num_slices = state.range(0);
86 constexpr size_t kSliceSize = 16;
87 std::vector<grpc_slice> slices;
88 for (int i = 0; i < num_slices; ++i) {
89 std::unique_ptr<char[]> buf(new char[kSliceSize]);
90 slices.emplace_back(g_core_codegen_interface->grpc_slice_from_copied_buffer(
91 buf.get(), kSliceSize));
92 }
93 grpc_byte_buffer* bb = g_core_codegen_interface->grpc_raw_byte_buffer_create(
94 slices.data(), num_slices);
95 grpc_byte_buffer_reader reader;
96 GPR_ASSERT(
97 g_core_codegen_interface->grpc_byte_buffer_reader_init(&reader, bb));
98 for (auto _ : state) {
99 grpc_slice* slice;
100 if (GPR_UNLIKELY(!g_core_codegen_interface->grpc_byte_buffer_reader_peek(
101 &reader, &slice))) {
102 g_core_codegen_interface->grpc_byte_buffer_reader_destroy(&reader);
103 GPR_ASSERT(
104 g_core_codegen_interface->grpc_byte_buffer_reader_init(&reader, bb));
105 continue;
106 }
107 }
108
109 g_core_codegen_interface->grpc_byte_buffer_reader_destroy(&reader);
110 g_core_codegen_interface->grpc_byte_buffer_destroy(bb);
111 for (auto& slice : slices) {
112 g_core_codegen_interface->grpc_slice_unref(slice);
113 }
114 }
115 BENCHMARK(BM_ByteBufferReader_Peek)->Ranges({{64 * 1024, 1024 * 1024}});
116
117 } // namespace testing
118 } // namespace grpc
119
120 // Some distros have RunSpecifiedBenchmarks under the benchmark namespace,
121 // and others do not. This allows us to support both modes.
122 namespace benchmark {
RunTheBenchmarksNamespaced()123 void RunTheBenchmarksNamespaced() { RunSpecifiedBenchmarks(); }
124 } // namespace benchmark
125
main(int argc,char ** argv)126 int main(int argc, char** argv) {
127 grpc::testing::TestEnvironment env(argc, argv);
128 LibraryInitializer libInit;
129 ::benchmark::Initialize(&argc, argv);
130 ::grpc::testing::InitTest(&argc, &argv, false);
131
132 benchmark::RunTheBenchmarksNamespaced();
133 return 0;
134 }
135