diff options
| -rw-r--r-- | absl/container/internal/raw_hash_set_benchmark.cc | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/absl/container/internal/raw_hash_set_benchmark.cc b/absl/container/internal/raw_hash_set_benchmark.cc index a9b52c4f..88b07373 100644 --- a/absl/container/internal/raw_hash_set_benchmark.cc +++ b/absl/container/internal/raw_hash_set_benchmark.cc @@ -387,28 +387,42 @@ void BM_NoOpReserveStringTable(benchmark::State& state) { BENCHMARK(BM_NoOpReserveStringTable); void BM_ReserveIntTable(benchmark::State& state) { - int reserve_size = state.range(0); - for (auto _ : state) { + constexpr size_t kBatchSize = 1024; + size_t reserve_size = static_cast<size_t>(state.range(0)); + + std::vector<IntTable> tables; + while (state.KeepRunningBatch(kBatchSize)) { state.PauseTiming(); - IntTable t; + tables.clear(); + tables.resize(kBatchSize); state.ResumeTiming(); - benchmark::DoNotOptimize(t); - t.reserve(reserve_size); + for (auto& t : tables) { + benchmark::DoNotOptimize(t); + t.reserve(reserve_size); + benchmark::DoNotOptimize(t); + } } } -BENCHMARK(BM_ReserveIntTable)->Range(128, 4096); +BENCHMARK(BM_ReserveIntTable)->Range(1, 64); void BM_ReserveStringTable(benchmark::State& state) { - int reserve_size = state.range(0); - for (auto _ : state) { + constexpr size_t kBatchSize = 1024; + size_t reserve_size = static_cast<size_t>(state.range(0)); + + std::vector<StringTable> tables; + while (state.KeepRunningBatch(kBatchSize)) { state.PauseTiming(); - StringTable t; + tables.clear(); + tables.resize(kBatchSize); state.ResumeTiming(); - benchmark::DoNotOptimize(t); - t.reserve(reserve_size); + for (auto& t : tables) { + benchmark::DoNotOptimize(t); + t.reserve(reserve_size); + benchmark::DoNotOptimize(t); + } } } -BENCHMARK(BM_ReserveStringTable)->Range(128, 4096); +BENCHMARK(BM_ReserveStringTable)->Range(1, 64); // Like std::iota, except that ctrl_t doesn't support operator++. template <typename CtrlIter> |