Messages in this thread | | | Date | Fri, 20 Nov 2009 11:49:20 +0100 | From | Ingo Molnar <> | Subject | Re: [RFC][PATCH 1/2] perf: Add 'perf kmem' tool |
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* Pekka Enberg <penberg@cs.helsinki.fi> wrote:
> Ingo Molnar kirjoitti: > >* Pekka Enberg <penberg@cs.helsinki.fi> wrote: > > > >>Hi Ingo, > >> > >>On Fri, Nov 20, 2009 at 11:01 AM, Ingo Molnar <mingo@elte.hu> wrote: > >>>But ... even without that, perf is really fast and is supposed to build > >>>fine even in minimal (embedded) environments, so you can run it on the > >>>embedded board too. That's useful to get live inspection features like > >>>'perf top', 'perf stat' and 'perf probe' anyway. > >>Maybe I'm just too damn lazy but if I don't go through the trouble of > >>building my kernel on the box, I sure don't want to do that for perf > >>either. [...] > > > >Well you'll need 'perf' on that box anyway, to be able to do 'perf > >kmem record'. > > /me turns brains on > > You're right, of course. With kmemtrace-user, I just copied the raw > trace file from /sys/kernel. I wonder if that's a good enough reason > to keep kmemtrace bits around?
Not really. If then a light-weight recording app could be made but i'd rather wait for actual usecases to pop up.
Ingo
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