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

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Date:	Mon, 24 Jun 2013 10:32:53 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	Greg Price <price@....edu>,
	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>,
	Namhyung Kim <namhyung.kim@....com>
Subject: Re: [PATCH] perf report: Add option to collapse undesired parts of
 call graph


* Jiri Olsa <jolsa@...hat.com> wrote:

> It could also make sense to allow sorting on this
> the same way as we do for '-s parent' and report only
> '[other]' and 'blackbox' entries.
> 
> Also I dont like the 'blackbox' option name, it should
> complement the parent option somehow.. but no idea ;-)

Looks like a nice feature.

Maybe calling it '--collapse' would be a better name?

By default the call-graphs are all expanded to maximum. With this option 
certain function(s) and all their child chains can be collapsed.

--parent filters the call-chains, excluding all others that don't include 
this parent. It might make sense to rename it to --filter?

It would also be nice if all these visualization variants were available 
in the GTK front-end.

Thanks,

	Ingo
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