platform_bionic/benchmarks/pthread_benchmark.cpp
Elliott Hughes b28e490b73 Add various benchmarks.
These are based on ones from system/extras/tests/bionic/.

Change-Id: I7b1ae15a2ca5d1031a6a511d97b88125c1770047
2014-03-11 11:20:52 -07:00

104 lines
2.5 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 <pthread.h>
static void BM_pthread_self(int iters) {
StartBenchmarkTiming();
for (int i = 0; i < iters; ++i) {
pthread_self();
}
StopBenchmarkTiming();
}
BENCHMARK(BM_pthread_self);
static void BM_pthread_getspecific(int iters) {
StopBenchmarkTiming();
pthread_key_t key;
pthread_key_create(&key, NULL);
StartBenchmarkTiming();
for (int i = 0; i < iters; ++i) {
pthread_getspecific(key);
}
StopBenchmarkTiming();
pthread_key_delete(key);
}
BENCHMARK(BM_pthread_getspecific);
static void DummyPthreadOnceInitFunction() {
}
static void BM_pthread_once(int iters) {
StopBenchmarkTiming();
pthread_once_t once = PTHREAD_ONCE_INIT;
pthread_once(&once, DummyPthreadOnceInitFunction);
StartBenchmarkTiming();
for (int i = 0; i < iters; ++i) {
pthread_once(&once, DummyPthreadOnceInitFunction);
}
StopBenchmarkTiming();
}
BENCHMARK(BM_pthread_once);
static void BM_pthread_mutex_lock(int iters) {
StopBenchmarkTiming();
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
StartBenchmarkTiming();
for (int i = 0; i < iters; ++i) {
pthread_mutex_lock(&mutex);
pthread_mutex_unlock(&mutex);
}
StopBenchmarkTiming();
}
BENCHMARK(BM_pthread_mutex_lock);
static void BM_pthread_mutex_lock_ERRORCHECK(int iters) {
StopBenchmarkTiming();
pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER;
StartBenchmarkTiming();
for (int i = 0; i < iters; ++i) {
pthread_mutex_lock(&mutex);
pthread_mutex_unlock(&mutex);
}
StopBenchmarkTiming();
}
BENCHMARK(BM_pthread_mutex_lock_ERRORCHECK);
static void BM_pthread_mutex_lock_RECURSIVE(int iters) {
StopBenchmarkTiming();
pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER;
StartBenchmarkTiming();
for (int i = 0; i < iters; ++i) {
pthread_mutex_lock(&mutex);
pthread_mutex_unlock(&mutex);
}
StopBenchmarkTiming();
}
BENCHMARK(BM_pthread_mutex_lock_RECURSIVE);