/*
|
* 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 <sys/syscall.h>
|
#include <unistd.h>
|
|
#include <benchmark/benchmark.h>
|
#include "util.h"
|
|
static void BM_unistd_getpid(benchmark::State& state) {
|
while (state.KeepRunning()) {
|
getpid();
|
}
|
}
|
BIONIC_BENCHMARK(BM_unistd_getpid);
|
|
static void BM_unistd_getpid_syscall(benchmark::State& state) {
|
while (state.KeepRunning()) {
|
syscall(__NR_getpid);
|
}
|
}
|
BIONIC_BENCHMARK(BM_unistd_getpid_syscall);
|
|
#if defined(__BIONIC__)
|
|
// Stop GCC optimizing out our pure function.
|
/* Must not be static! */ pid_t (*gettid_fp)() = gettid;
|
|
static void BM_unistd_gettid(benchmark::State& state) {
|
while (state.KeepRunning()) {
|
gettid_fp();
|
}
|
}
|
BIONIC_BENCHMARK(BM_unistd_gettid);
|
|
#endif
|
|
void BM_unistd_gettid_syscall(benchmark::State& state) {
|
while (state.KeepRunning()) {
|
syscall(__NR_gettid);
|
}
|
}
|
BIONIC_BENCHMARK(BM_unistd_gettid_syscall);
|
