OS X 下采集程序调用:sample


sample — Profile a process during a time interval

sample is a command-line tool for gathering data about the running behavior of a process. It suspends
the process at specified intervals (by default, every 1 millisecond), records the call stacks of all
threads in the process at that time, then resumes the process. The analysis done by sample is called
sampling” because it only checks the state of the program at the sampling points. The analysis may
miss execution of some functions that are not executing during one of the samples, but sample still
provides useful data about commonly executing functions.


OS X 下采集程序调用:sample by @sskaje: https://sskaje.me/2015/04/os-%e4%b8%8b%e9%87%87%e9%9b%86%e7%a8%8b%e5%ba%8f%e8%b0%83%e7%94%a8%ef%bc%9asample/