54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
/*
|
|
* Copyright (C) 2014 The Android Open Source Project
|
|
*
|
|
* 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 "benchmark.h"
|
|
|
|
#include <sys/syscall.h>
|
|
#include <unistd.h>
|
|
|
|
static void BM_unistd_getpid(int iters) {
|
|
StartBenchmarkTiming();
|
|
|
|
for (int i = 0; i < iters; ++i) {
|
|
getpid();
|
|
}
|
|
|
|
StopBenchmarkTiming();
|
|
}
|
|
BENCHMARK(BM_unistd_getpid);
|
|
|
|
static void BM_unistd_gettid(int iters) {
|
|
StartBenchmarkTiming();
|
|
|
|
for (int i = 0; i < iters; ++i) {
|
|
gettid();
|
|
}
|
|
|
|
StopBenchmarkTiming();
|
|
}
|
|
BENCHMARK(BM_unistd_gettid);
|
|
|
|
static void BM_unistd_gettid_syscall(int iters) {
|
|
StartBenchmarkTiming();
|
|
|
|
for (int i = 0; i < iters; ++i) {
|
|
syscall(__NR_gettid);
|
|
}
|
|
|
|
StopBenchmarkTiming();
|
|
}
|
|
BENCHMARK(BM_unistd_gettid_syscall);
|