upload android base code part3

android/bionic/benchmarks/pthread_benchmark.cpp

@@ -0,0 +1,193 @@
+/*
+ * 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 <pthread.h>
+
+#include <benchmark/benchmark.h>
+
+// Stop GCC optimizing out our pure function.
+/* Must not be static! */ pthread_t (*pthread_self_fp)() = pthread_self;
+
+static void BM_pthread_self(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    pthread_self_fp();
+  }
+}
+BENCHMARK(BM_pthread_self);
+
+static void BM_pthread_getspecific(benchmark::State& state) {
+  pthread_key_t key;
+  pthread_key_create(&key, NULL);
+
+  while (state.KeepRunning()) {
+    pthread_getspecific(key);
+  }
+
+  pthread_key_delete(key);
+}
+BENCHMARK(BM_pthread_getspecific);
+
+static void BM_pthread_setspecific(benchmark::State& state) {
+  pthread_key_t key;
+  pthread_key_create(&key, NULL);
+
+  while (state.KeepRunning()) {
+    pthread_setspecific(key, NULL);
+  }
+
+  pthread_key_delete(key);
+}
+BENCHMARK(BM_pthread_setspecific);
+
+static void DummyPthreadOnceInitFunction() {
+}
+
+static void BM_pthread_once(benchmark::State& state) {
+  static pthread_once_t once = PTHREAD_ONCE_INIT;
+  pthread_once(&once, DummyPthreadOnceInitFunction);
+
+  while (state.KeepRunning()) {
+    pthread_once(&once, DummyPthreadOnceInitFunction);
+  }
+}
+BENCHMARK(BM_pthread_once);
+
+static void BM_pthread_mutex_lock(benchmark::State& state) {
+  pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+
+  while (state.KeepRunning()) {
+    pthread_mutex_lock(&mutex);
+    pthread_mutex_unlock(&mutex);
+  }
+}
+BENCHMARK(BM_pthread_mutex_lock);
+
+static void BM_pthread_mutex_lock_ERRORCHECK(benchmark::State& state) {
+  pthread_mutex_t mutex = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP;
+
+  while (state.KeepRunning()) {
+    pthread_mutex_lock(&mutex);
+    pthread_mutex_unlock(&mutex);
+  }
+}
+BENCHMARK(BM_pthread_mutex_lock_ERRORCHECK);
+
+static void BM_pthread_mutex_lock_RECURSIVE(benchmark::State& state) {
+  pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
+
+  while (state.KeepRunning()) {
+    pthread_mutex_lock(&mutex);
+    pthread_mutex_unlock(&mutex);
+  }
+}
+BENCHMARK(BM_pthread_mutex_lock_RECURSIVE);
+
+static void BM_pthread_rwlock_read(benchmark::State& state) {
+  pthread_rwlock_t lock;
+  pthread_rwlock_init(&lock, NULL);
+
+  while (state.KeepRunning()) {
+    pthread_rwlock_rdlock(&lock);
+    pthread_rwlock_unlock(&lock);
+  }
+
+  pthread_rwlock_destroy(&lock);
+}
+BENCHMARK(BM_pthread_rwlock_read);
+
+static void BM_pthread_rwlock_write(benchmark::State& state) {
+  pthread_rwlock_t lock;
+  pthread_rwlock_init(&lock, NULL);
+
+  while (state.KeepRunning()) {
+    pthread_rwlock_wrlock(&lock);
+    pthread_rwlock_unlock(&lock);
+  }
+
+  pthread_rwlock_destroy(&lock);
+}
+BENCHMARK(BM_pthread_rwlock_write);
+
+static void* IdleThread(void*) {
+  return NULL;
+}
+
+static void BM_pthread_create(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    pthread_t thread;
+    pthread_create(&thread, NULL, IdleThread, NULL);
+    state.PauseTiming();
+    pthread_join(thread, NULL);
+    state.ResumeTiming();
+  }
+}
+BENCHMARK(BM_pthread_create);
+
+static void* RunThread(void* arg) {
+  benchmark::State& state = *reinterpret_cast<benchmark::State*>(arg);
+  state.PauseTiming();
+  return NULL;
+}
+
+static void BM_pthread_create_and_run(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    pthread_t thread;
+    pthread_create(&thread, NULL, RunThread, &state);
+    pthread_join(thread, NULL);
+    state.ResumeTiming();
+  }
+}
+BENCHMARK(BM_pthread_create_and_run);
+
+static void* ExitThread(void* arg) {
+  benchmark::State& state = *reinterpret_cast<benchmark::State*>(arg);
+  state.ResumeTiming();
+  pthread_exit(NULL);
+}
+
+static void BM_pthread_exit_and_join(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    state.PauseTiming();
+    pthread_t thread;
+    pthread_create(&thread, NULL, ExitThread, &state);
+    pthread_join(thread, NULL);
+  }
+}
+BENCHMARK(BM_pthread_exit_and_join);
+
+static void BM_pthread_key_create(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    pthread_key_t key;
+    pthread_key_create(&key, NULL);
+
+    state.PauseTiming();
+    pthread_key_delete(key);
+    state.ResumeTiming();
+  }
+}
+BENCHMARK(BM_pthread_key_create);
+
+static void BM_pthread_key_delete(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    state.PauseTiming();
+    pthread_key_t key;
+    pthread_key_create(&key, NULL);
+    state.ResumeTiming();
+
+    pthread_key_delete(key);
+  }
+}
+BENCHMARK(BM_pthread_key_delete);