TaiJuWu commented on code in PR #2168: URL: https://github.com/apache/nuttx-apps/pull/2168#discussion_r1380193481
########## benchmarks/spinlock_bench/spinlock_bench.c: ########## @@ -0,0 +1,106 @@ +/**************************************************************************** + * apps/benchmarks/spinlock_bench/spinlock_bench.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <stdio.h> +#include <assert.h> +#include <errno.h> +#include <nuttx/spinlock.h> +#include <time.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#define TEST_NUM CONFIG_SPINLOCK_MULTITHREAD +#define THREAD_NUM CONFIG_SPINLOCK_MULTITHREAD + +/**************************************************************************** + * Private Type + ****************************************************************************/ + +struct thread_parmeter_s +{ + FAR int *result; + FAR spinlock_t *lock; +}; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +static FAR void *thread_spinlock(FAR void *parameter) +{ + FAR int *result = ((FAR struct thread_parmeter_s *)parameter)->result; + spinlock_t *lock = ((FAR struct thread_parmeter_s *)parameter)->lock; + + for (FAR int i = 0; i < TEST_NUM; i++) + { + spin_lock(lock); + (*result)++; + spin_unlock(lock); + } + + return NULL; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +void main(void) +{ + FAR spinlock_t lock = SP_UNLOCKED; + FAR int result = 0; + FAR pthread_t thread[THREAD_NUM]; + FAR struct thread_parmeter_s para; + + FAR int status; + FAR int i; + + para.result = &result; + para.lock = &lock; + + FAR clock_t start = perf_gettime(); + for (i = 0; i < THREAD_NUM; ++i) + { + status = pthread_create(&thread[i], NULL, + thread_spinlock, ¶); + if (status != 0) + { + printf("spinlock_test: ERROR pthread_create failed, status=%d\n", + status); + ASSERT(false); + } + } + + for (i = 0; i < THREAD_NUM; ++i) + { + pthread_join(thread[i], NULL); + } + + FAR clock_t end = perf_gettime(); Review Comment: Done. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
