1 //
2 //
3 // Copyright 2017 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 // Benchmark arenas
20
21 #include <benchmark/benchmark.h>
22
23 #include "absl/random/random.h"
24
25 #include "src/core/lib/gprpp/sync.h"
26
BM_OneRngFromFreshBitSet(benchmark::State & state)27 static void BM_OneRngFromFreshBitSet(benchmark::State& state) {
28 for (auto _ : state) {
29 benchmark::DoNotOptimize(absl::Uniform(absl::BitGen(), 0.0, 1.0));
30 }
31 }
32 BENCHMARK(BM_OneRngFromFreshBitSet);
33
BM_OneRngFromReusedBitSet(benchmark::State & state)34 static void BM_OneRngFromReusedBitSet(benchmark::State& state) {
35 absl::BitGen bitgen;
36 for (auto _ : state) {
37 benchmark::DoNotOptimize(absl::Uniform(bitgen, 0.0, 1.0));
38 }
39 }
40 BENCHMARK(BM_OneRngFromReusedBitSet);
41
BM_OneRngFromReusedBitSetWithMutex(benchmark::State & state)42 static void BM_OneRngFromReusedBitSetWithMutex(benchmark::State& state) {
43 struct Data {
44 grpc_core::Mutex mu;
45 absl::BitGen bitgen ABSL_GUARDED_BY(mu);
46 };
47 Data data;
48 for (auto _ : state) {
49 grpc_core::MutexLock lock(&data.mu);
50 benchmark::DoNotOptimize(absl::Uniform(data.bitgen, 0.0, 1.0));
51 }
52 }
53 BENCHMARK(BM_OneRngFromReusedBitSetWithMutex);
54
55 // Some distros have RunSpecifiedBenchmarks under the benchmark namespace,
56 // and others do not. This allows us to support both modes.
57 namespace benchmark {
RunTheBenchmarksNamespaced()58 void RunTheBenchmarksNamespaced() { RunSpecifiedBenchmarks(); }
59 } // namespace benchmark
60
main(int argc,char ** argv)61 int main(int argc, char** argv) {
62 ::benchmark::Initialize(&argc, argv);
63 benchmark::RunTheBenchmarksNamespaced();
64 return 0;
65 }
66