Linux Process Sampling

Scott Edwards supadupa at gmail.com
Thu Aug 19 12:16:17 MDT 2010


On Thu, Aug 19, 2010 at 1:08 PM, Dave Smith <dave at thesmithfam.org> wrote:
> In Mac OS X, I can use the "Activity Monitor" app to sample a process.
> It shows the call tree at the moment, which is very handy to debug a
> runaway process. I can find no such feature in Linux, so a co-worker
> whipped up a script to use gdb to attach to a process repeatedly, dump
> stack traces, and build a call tree. This works okay, but is very slow.
> Mac OS X can sample a process in a few seconds. Mine can take a few
> minutes (to sample it 10 times, for example).
>
> Google turned up this, but I can't seem to download the code:
>
> http://libetpan.sourceforge.net/sample/index.html
>
> Does anyone have any other tools for sampling a process's call stack?
>
> --Dave

strace can show what system, and some lib calls are being called
(live).  qprof says it can do profiling (which is probably closer to
what you're after).

Regards,


Scott Edwards.


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