软件测试之性能测试（ios）——获取cpu占用率

最新推荐文章于 2022-07-07 17:02:08 发布

lfdanding

最新推荐文章于 2022-07-07 17:02:08 发布

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分类专栏：软件测试

本文链接：https://blog.youkuaiyun.com/lfdanding/article/details/86537780

ios获取cpu占用率代码如下：

#pragma mark - CPU
- (float)getCpuUsage
{
    kern_return_t           kr;
    thread_array_t          thread_list;
    mach_msg_type_number_t  thread_count;
    thread_info_data_t      thinfo;
    mach_msg_type_number_t  thread_info_count;
    thread_basic_info_t     basic_info_th;
    
    //获取当前进程中线程列表
    kr = task_threads(mach_task_self(), &thread_list, &thread_count);
    if (kr != KERN_SUCCESS) {
        return -1;
    }
    float cpu_usage = 0;
    
    for (int i = 0; i < thread_count; i++)
    {
        thread_info_count = THREAD_INFO_MAX;
        //获取每一个线程信息
        kr = thread_info(thread_list[i], THREAD_BASIC_INFO,(thread_info_t)thinfo, &thread_info_count);
        if (kr != KERN_SUCCESS) {
            return -1;
        }
        
        basic_info_th = (thread_basic_info_t)thinfo;
        
        if (!(basic_info_th->flags & TH_FLAGS_IDLE))
        {
            cpu_usage += basic_info_th->cpu_usage;
        }