Linux Process Sampling

Lonnie Olson lists at kittypee.com
Thu Aug 19 12:56:28 MDT 2010


On Thu, Aug 19, 2010 at 12:08 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).

Unfortunately, until DTrace can be ported to Linux, strace and gdb are
as close as we can get.
And DTrace is even less likely to be an option now that Oracle owns
it.  We're screwed.

--lonnie


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