1 // Copyright 2024 gRPC authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include <benchmark/benchmark.h> 16 17 #include <random> 18 19 #include "src/core/util/tdigest.h" 20 21 namespace grpc_core { 22 BM_AddWithCompression(benchmark::State & state)23static void BM_AddWithCompression(benchmark::State& state) { 24 // kNumValues is 512 with a 4k page. 25 const size_t kNumValues = sysconf(_SC_PAGE_SIZE) / sizeof(double); 26 std::vector<double> vals; 27 vals.reserve(kNumValues); 28 std::mt19937 gen(1234); 29 std::exponential_distribution<double> exp_dist; 30 31 for (int idx = 0; idx < kNumValues; idx++) { 32 vals.push_back(exp_dist(gen)); 33 } 34 35 TDigest tdigest(/*compression=*/state.range(0)); 36 37 while (state.KeepRunningBatch(kNumValues)) { 38 for (double val : vals) { 39 tdigest.Add(val); 40 } 41 } 42 43 state.SetItemsProcessed(state.iterations()); 44 } 45 BENCHMARK(BM_AddWithCompression)->Arg(1)->Arg(10)->Arg(100)->Arg(1000); 46 47 } // namespace grpc_core 48 49 // Some distros have RunSpecifiedBenchmarks under the benchmark namespace, 50 // and others do not. This allows us to support both modes. 51 namespace benchmark { RunTheBenchmarksNamespaced()52void RunTheBenchmarksNamespaced() { RunSpecifiedBenchmarks(); } 53 } // namespace benchmark 54 main(int argc,char ** argv)55int main(int argc, char** argv) { 56 ::benchmark::Initialize(&argc, argv); 57 benchmark::RunTheBenchmarksNamespaced(); 58 return 0; 59 } 60