ceph/src/jaegertracing/opentelemetry-cpp/sdk/test/common/random_benchmark.cc

   1 // Copyright The OpenTelemetry Authors
   2 // SPDX-License-Identifier: Apache-2.0
   3
   4 #include "src/common/random.h"
   5
   6 #include <cstdint>
   7 #include <random>
   8
   9 #include <benchmark/benchmark.h>
  10
  11 namespace
  12 {
  13 using opentelemetry::sdk::common::Random;
  14
  15 void BM_RandomIdGeneration(benchmark::State &state)
  16 {
  17   while (state.KeepRunning())
  18   {
  19     benchmark::DoNotOptimize(Random::GenerateRandom64());
  20   }
  21 }
  22 BENCHMARK(BM_RandomIdGeneration);
  23
  24 void BM_RandomIdStdGeneration(benchmark::State &state)
  25 {
  26   std::mt19937_64 generator{0};
  27   while (state.KeepRunning())
  28   {
  29     benchmark::DoNotOptimize(generator());
  30   }
  31 }
  32 BENCHMARK(BM_RandomIdStdGeneration);
  33
  34 }  // namespace
  35 BENCHMARK_MAIN();