gvisor.dev/gvisor@v0.0.0-20240520182842-f9d4d51c7e0f/test/perf/linux/sched_yield_benchmark.cc (about)

     1  // Copyright 2020 The gVisor 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  //     http://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 <sched.h>
    16  
    17  #include "gtest/gtest.h"
    18  #include "benchmark/benchmark.h"
    19  #include "test/util/test_util.h"
    20  
    21  namespace gvisor {
    22  namespace testing {
    23  
    24  namespace {
    25  
    26  void BM_Sched_yield(benchmark::State& state) {
    27    for (auto ignored : state) {
    28      TEST_CHECK(sched_yield() == 0);
    29    }
    30  }
    31  
    32  BENCHMARK(BM_Sched_yield)->ThreadRange(1, 2000)->UseRealTime();
    33  
    34  }  // namespace
    35  
    36  }  // namespace testing
    37  }  // namespace gvisor