Abseil Common Libraries (C++) (grcp 依赖)
https://abseil.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.9 KiB
57 lines
1.9 KiB
// 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 |
|
// |
|
// http://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 "benchmark/benchmark.h" |
|
|
|
namespace { |
|
|
|
// Benchmark Time(ns) CPU(ns) Iterations |
|
// ------------------------------------------------------------------------- |
|
// BM_Difference_Days 20 20 34542508 |
|
// BM_Step_Days 15 15 48098146 |
|
// BM_Format 688 687 1019803 |
|
// BM_Parse 921 920 762788 |
|
// BM_RoundTripFormatParse 1766 1764 396092 |
|
|
|
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); |
|
|
|
} // namespace
|
|
|