linux-kernel - Re: [RFC][PATCH 1/2] perf: Add 'perf kmem' tool

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Date:	Fri, 20 Nov 2009 11:13:05 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Pekka Enberg <penberg@...helsinki.fi>
Cc:	Li Zefan <lizf@...fujitsu.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Eduard - Gabriel Munteanu <eduard.munteanu@...ux360.ro>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: Re: [RFC][PATCH 1/2] perf: Add 'perf kmem' tool


* Pekka Enberg <penberg@...helsinki.fi> wrote:

> Hi Ingo,
> 
> On Fri, Nov 20, 2009 at 11:01 AM, Ingo Molnar <mingo@...e.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'.

	Ingo
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