问题描述
我正试图在iPhone上找到最佳的incode性能监控方法。
I'm trying to find the best method of incode performance monitoring on the iPhone.
在Windows平台上，我会使用以下功能：
On a windows platform I would use the following functions :
QueryPerformanceCounter（（LARGE_INTEGER *）& ctr）;
QueryPerformanceFrequency（（LARGE_INTEGER *）& freq）;
QueryPerformanceCounter((LARGE_INTEGER *)&ctr);
QueryPerformanceFrequency((LARGE_INTEGER *)&freq);
iPhone上有这样的东西吗？什么是最高分辨率我可以在不使用仪器或鲨鱼等外部工具的情况下计时？
Does anything like this exist on the iPhone? Whats the highest resolution I can time something without using an external tool such as Instruments or Shark?
推荐答案
我认为mach_absolute_time就是你的意思正在找。欲了解更多信息：
I think mach_absolute_time is what you are looking for. For more information:
- Technical Q&A QA1398: Mach Absolute Time Units
- Tutorial: Performance and Time
- mach_ absolute_ time on the iPhone
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