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/*
* Copyright (C) 2013 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 <sys/time.h>
#include <time.h>
#include <unistd.h>
#include <benchmark/benchmark.h>
#include "util.h"
static void BM_time_clock_gettime(benchmark::State& state) {
timespec t;
while (state.KeepRunning()) {
clock_gettime(CLOCK_MONOTONIC, &t);
}
}
BIONIC_BENCHMARK(BM_time_clock_gettime);
static void BM_time_clock_gettime_syscall(benchmark::State& state) {
timespec t;
while (state.KeepRunning()) {
syscall(__NR_clock_gettime, CLOCK_MONOTONIC, &t);
}
}
BIONIC_BENCHMARK(BM_time_clock_gettime_syscall);
static void BM_time_gettimeofday(benchmark::State& state) {
timeval tv;
while (state.KeepRunning()) {
gettimeofday(&tv, nullptr);
}
}
BIONIC_BENCHMARK(BM_time_gettimeofday);
void BM_time_gettimeofday_syscall(benchmark::State& state) {
timeval tv;
while (state.KeepRunning()) {
syscall(__NR_gettimeofday, &tv, nullptr);
}
}
BIONIC_BENCHMARK(BM_time_gettimeofday_syscall);
void BM_time_time(benchmark::State& state) {
while (state.KeepRunning()) {
time(nullptr);
}
}
BIONIC_BENCHMARK(BM_time_time);
void BM_time_localtime(benchmark::State& state) {
time_t t = time(nullptr);
while (state.KeepRunning()) {
localtime(&t);
}
}
BIONIC_BENCHMARK(BM_time_localtime);
void BM_time_localtime_r(benchmark::State& state) {
time_t t = time(nullptr);
while (state.KeepRunning()) {
struct tm tm;
localtime_r(&t, &tm);
}
}
BIONIC_BENCHMARK(BM_time_localtime_r);
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