linux-kernel - Re: [PATCH] Add inverted call graph report support to perf tool

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Message-ID: <20110311105118.GA1826@nowhere>
Date:	Fri, 11 Mar 2011 11:51:22 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Sam Liao <phyomh@...il.com>, linux-perf-users@...r.kernel.org,
	linux-kernel@...r.kernel.org, acme@...hat.com,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: [PATCH] Add inverted call graph report support to perf tool

On Thu, Mar 10, 2011 at 07:48:16AM +0100, Ingo Molnar wrote:
> 
> * Frederic Weisbecker <fweisbec@...il.com> wrote:
> 
> > But your idea of turning the callee into the caller would show us a very global 
> > profiling. With reverse callchains it can be a very nice overview of the big 
> > picture.
> 
> Very much agreed - i think that matches the sysprof display structure as well, 
> right?

Yeah indeed, IIRC.
 
> This could then be propagated not just into perf report but perf top --tui as well.

Probably yeah. Are callchains already supported by perf top?
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