linux-kernel - Re: [PATCH] perf report: Add option to collapse undesired parts of call graph

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Message-ID: <20130626224134.GA22203@biohazard-cafe.mit.edu>
Date:	Wed, 26 Jun 2013 18:41:34 -0400
From:	Greg Price <price@....EDU>
To:	Namhyung Kim <namhyung.kim@....com>, Ingo Molnar <mingo@...nel.org>
Cc:	Jiri Olsa <jolsa@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	David Ahern <dsahern@...il.com>,
	Pekka Enberg <penberg@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [PATCH] perf report: Add option to collapse undesired parts of
 call graph

Hi Namhyung, hi Ingo,

On Tue, Jun 25, 2013 at 05:01:47PM +0900, Namhyung Kim wrote:
> >>TBH I'm not really familiar with the GTK front-end, as I mainly use
> >>the TUI.  At a quick trial, it looks like --blackbox has the expected
> >>effect on the display there; though with or without --blackbox I can't
> >>seem to get the entries to expand to show me a call-graph profile, so
> >>it's hard to demonstrate it fully.  Not sure what I may have done
> >>wrong in building or running perf to make that not work (or is that
> >>expected?)
> 
> Currently perf GTK front-end does not support callchains at all.
> There's a floating patchset to enable it though.
> 
> https://lkml.org/lkml/2013/6/4/181

OK, good to know I didn't simply mess something up.  So probably best
to leave any specific --blackbox-related support aside until that
patchset lands.


> >>What changes do you have in mind to make these available in the GTK
> >>front-end?
> >
> >I was thinking of something obvious like right-clicking it to make that
> >function back boxed away or so? Have no firm ideas - maybe the GTK gents
> >on Cc: know how to best integrate such features.
> 
> We don't support context menu yet.  Frankly, perf GTK code is still
> premature and needs some love.  Any contribution should be welcomed!

Noted.

Cheers,
Greg
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