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.
41 lines
1.3 KiB
41 lines
1.3 KiB
7 years ago
|
// Copyright 2017 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/base/internal/thread_identity.h"
|
||
|
|
#include "absl/synchronization/internal/create_thread_identity.h"
|
||
|
|
#include "absl/synchronization/internal/per_thread_sem.h"
|
||
|
|
#include "benchmark/benchmark.h"
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
|
||
|
|
void BM_SafeCurrentThreadIdentity(benchmark::State& state) {
|
||
|
|
for (auto _ : state) {
|
||
|
|
benchmark::DoNotOptimize(
|
||
|
|
absl::synchronization_internal::GetOrCreateCurrentThreadIdentity());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
BENCHMARK(BM_SafeCurrentThreadIdentity);
|
||
|
|
|
||
|
|
void BM_UnsafeCurrentThreadIdentity(benchmark::State& state) {
|
||
|
|
for (auto _ : state) {
|
||
|
|
benchmark::DoNotOptimize(
|
||
|
|
absl::base_internal::CurrentThreadIdentityIfPresent());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
BENCHMARK(BM_UnsafeCurrentThreadIdentity);
|
||
|
|
|
||
|
|
} // namespace
|
||
|
|
|
||
|
|
BENCHMARK_MAIN();
|