Re: [PATCH 2/3] perf tools: remove pid option from stat

Ingo Molnar
2009-12-30T09:23:54Z

* Peter Zijlstra <peterz@infradead.org> wrote:

> On Tue, 2009-12-29 at 16:37 +0800, Liming Wang wrote:
> > pid option is useless for stat, so remove it.
>
> Hmm, it shouldn't be.. and instead of removing it I would suggesting fixing
> this.

Yes. For exampe something like:

perf stat --repeat 10 --pid $(pidof firefox) sleep 1

Should show firefox's resource usage sampled over 10 seconds.

If this doesnt work it should be fixed. Plus i suspect we should allow:

perf stat --pid $(pidof firefox)

to run until Ctrl-C - like perf record allows.

Ingo