thread_identity_benchmark.cc (1307B)
1 // Copyright 2017 The Abseil Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "absl/base/internal/thread_identity.h" 16 #include "absl/synchronization/internal/create_thread_identity.h" 17 #include "absl/synchronization/internal/per_thread_sem.h" 18 #include "benchmark/benchmark.h" 19 20 namespace { 21 22 void BM_SafeCurrentThreadIdentity(benchmark::State& state) { 23 for (auto _ : state) { 24 benchmark::DoNotOptimize( 25 absl::synchronization_internal::GetOrCreateCurrentThreadIdentity()); 26 } 27 } 28 BENCHMARK(BM_SafeCurrentThreadIdentity); 29 30 void BM_UnsafeCurrentThreadIdentity(benchmark::State& state) { 31 for (auto _ : state) { 32 benchmark::DoNotOptimize( 33 absl::base_internal::CurrentThreadIdentityIfPresent()); 34 } 35 } 36 BENCHMARK(BM_UnsafeCurrentThreadIdentity); 37 38 } // namespace