[Openmcl-devel] profiler

[R. Matthew Emerson]

Max Rottenkolber took little snippet of code that I wrote and polished it up and documented it, and I thought some of you might find it interesting or useful if you haven't seen it yet.

Max says:

Still, my search was not in vain. rme sent me a very helpful paste, whose contents he described as “a crude userland-based sampling profiler”. Here is how it works: it peeks into the call stack of a running process repeatedly to find out which function is being run, and counts how often it finds the process busy with a given function. With the collected information it can then report an estimate of where time is spent.


http://mr.gy/blog/sam.html

https://github.com/eugeneia/sam