Linux应用程序分析 [英] Linux application profiling

问题描述

我需要一些方法来记录Linux机器上应用程序的性能.我没有IDE.

I need some means of recording the performance of an application on a Linux machine. I won't have an IDE.

理想情况下，我需要一个将附加到进程并记录以下内容的定期快照的应用程序: 内存使用情况 线程数 CPU使用率

Ideally, I need an app that will attach to a process and log periodic snapshots of: memory usage number of threads CPU usage

有什么想法吗?

推荐答案

如果您正在寻找可以提高程序速度的方法，则需要

If you are looking for things to do to possibly speed up the program, you need stackshots. A simple way to do this is to use the pstack utility, or lsstack if you can get it.

您可以比 gprof 做得更好.您想使用正式的性能分析工具，想要在挂钟时间对调用堆栈进行采样并提供线路级成本的工具，例如Oprofile或RotateRight/Zoom.

You can do better than gprof. If you want to use an official profiling tool, you want something that samples the call stack on wall-clock time and presents line-level cost, such as Oprofile or RotateRight/Zoom.

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