linux-kernel - Re: [RFC/PATCHSET 00/15] perf report: Add support to accumulate hist periods

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Message-ID: <20120927230138.GA10660@somewhere.redhat.com>
Date:	Fri, 28 Sep 2012 01:01:48 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Namhyung Kim <namhyung@...nel.org>
Cc:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Arun Sharma <asharma@...com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...hat.com>
Subject: Re: [RFC/PATCHSET 00/15] perf report: Add support to accumulate hist
 periods

On Tue, Sep 25, 2012 at 01:57:26PM +0900, Namhyung Kim wrote:
> Ping.  Any comments for this?
> 
> Arun, thanks for testing!
> Namhyung

When Arun was working on this, I asked him to explore if it could make sense to reuse
the "-b, --branch-stack"  perf report option. Because after all, this feature is doing
about the same than "-b" except it's using callchains instead of full branch tracing.
But callchains are branches. Just a limited subset of all branches taken on excecution.
So you can probably reuse some interface and even ground code there.

What do you think?
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