diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/time/civil_time_benchmark.cc')
| -rw-r--r-- | third_party/abseil_cpp/absl/time/civil_time_benchmark.cc | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/third_party/abseil_cpp/absl/time/civil_time_benchmark.cc b/third_party/abseil_cpp/absl/time/civil_time_benchmark.cc deleted file mode 100644 index f04dbe200e..0000000000 --- a/third_party/abseil_cpp/absl/time/civil_time_benchmark.cc +++ /dev/null @@ -1,127 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/civil_time.h" - -#include <numeric> -#include <vector> - -#include "absl/hash/hash.h" -#include "benchmark/benchmark.h" - -namespace { - -// Run on (12 X 3492 MHz CPUs); 2018-11-05T13:44:29.814239103-08:00 -// CPU: Intel Haswell with HyperThreading (6 cores) dL1:32KB dL2:256KB dL3:15MB -// Benchmark Time(ns) CPU(ns) Iterations -// ---------------------------------------------------------------- -// BM_Difference_Days 14.5 14.5 48531105 -// BM_Step_Days 12.6 12.6 54876006 -// BM_Format 587 587 1000000 -// BM_Parse 692 692 1000000 -// BM_RoundTripFormatParse 1309 1309 532075 -// BM_CivilYearAbslHash 0.710 0.710 976400000 -// BM_CivilMonthAbslHash 1.13 1.13 619500000 -// BM_CivilDayAbslHash 1.70 1.70 426000000 -// BM_CivilHourAbslHash 2.45 2.45 287600000 -// BM_CivilMinuteAbslHash 3.21 3.21 226200000 -// BM_CivilSecondAbslHash 4.10 4.10 171800000 - -void BM_Difference_Days(benchmark::State& state) { - const absl::CivilDay c(2014, 8, 22); - const absl::CivilDay epoch(1970, 1, 1); - while (state.KeepRunning()) { - const absl::civil_diff_t n = c - epoch; - benchmark::DoNotOptimize(n); - } -} -BENCHMARK(BM_Difference_Days); - -void BM_Step_Days(benchmark::State& state) { - const absl::CivilDay kStart(2014, 8, 22); - absl::CivilDay c = kStart; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(++c); - } -} -BENCHMARK(BM_Step_Days); - -void BM_Format(benchmark::State& state) { - const absl::CivilSecond c(2014, 1, 2, 3, 4, 5); - while (state.KeepRunning()) { - const std::string s = absl::FormatCivilTime(c); - benchmark::DoNotOptimize(s); - } -} -BENCHMARK(BM_Format); - -void BM_Parse(benchmark::State& state) { - const std::string f = "2014-01-02T03:04:05"; - absl::CivilSecond c; - while (state.KeepRunning()) { - const bool b = absl::ParseCivilTime(f, &c); - benchmark::DoNotOptimize(b); - } -} -BENCHMARK(BM_Parse); - -void BM_RoundTripFormatParse(benchmark::State& state) { - const absl::CivilSecond c(2014, 1, 2, 3, 4, 5); - absl::CivilSecond out; - while (state.KeepRunning()) { - const bool b = absl::ParseCivilTime(absl::FormatCivilTime(c), &out); - benchmark::DoNotOptimize(b); - } -} -BENCHMARK(BM_RoundTripFormatParse); - -template <typename T> -void BM_CivilTimeAbslHash(benchmark::State& state) { - const int kSize = 100000; - std::vector<T> civil_times(kSize); - std::iota(civil_times.begin(), civil_times.end(), T(2018)); - - absl::Hash<T> absl_hasher; - while (state.KeepRunningBatch(kSize)) { - for (const T civil_time : civil_times) { - benchmark::DoNotOptimize(absl_hasher(civil_time)); - } - } -} -void BM_CivilYearAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilYear>(state); -} -void BM_CivilMonthAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilMonth>(state); -} -void BM_CivilDayAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilDay>(state); -} -void BM_CivilHourAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilHour>(state); -} -void BM_CivilMinuteAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilMinute>(state); -} -void BM_CivilSecondAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilSecond>(state); -} -BENCHMARK(BM_CivilYearAbslHash); -BENCHMARK(BM_CivilMonthAbslHash); -BENCHMARK(BM_CivilDayAbslHash); -BENCHMARK(BM_CivilHourAbslHash); -BENCHMARK(BM_CivilMinuteAbslHash); -BENCHMARK(BM_CivilSecondAbslHash); - -} // namespace |