linux-kernel - Re: [PATCH 3/3] perf tools: Add readable output for callchain debug

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Message-ID: <20140203163946.GB1129@krava.brq.redhat.com>
Date:	Mon, 3 Feb 2014 17:39:46 +0100
From:	Jiri Olsa <jolsa@...hat.com>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	linux-kernel@...r.kernel.org,
	Corey Ashford <cjashfor@...ux.vnet.ibm.com>,
	David Ahern <dsahern@...il.com>, Ingo Molnar <mingo@...e.hu>,
	Namhyung Kim <namhyung@...nel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Andi Kleen <andi@...stfloor.org>,
	Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [PATCH 3/3] perf tools: Add readable output for callchain debug

On Mon, Feb 03, 2014 at 01:09:15PM -0200, Arnaldo Carvalho de Melo wrote:
> Em Mon, Feb 03, 2014 at 12:44:43PM +0100, Jiri Olsa escreveu:
> > Adding people readable output for callchain debug,
> > to get following '-v' output:
> > 
> >   $ perf record -v -g ls
> >   callchain: type DWARF
> >   callchain: stack dump size 4096
> >   ...
> 
> Applied, but then I tried:
> 
> [acme@zoo linux]$ perf evlist -v
> cycles: sample_freq=4000, size: 96, sample_type:
> IP|TID|TIME|CALLCHAIN|PERIOD, disabled: 1, inherit: 1, mmap: 1, comm: 1,
> freq: 1, enable_on_exec: 1, sample_id_all: 1, exclude_guest: 1
> [acme@zoo linux]$ 
> 
> 
> I.e. using the tool that provides info about 'perf.data' files, and
> there I couldn't figure it out which kind of callchains was used, can
> you fix it there too?

todo updated ;-)

jirka
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