From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1753048Ab3KDNXw (ORCPT <rfc822;w@1wt.eu>);
	Mon, 4 Nov 2013 08:23:52 -0500
Received: from mail-wg0-f53.google.com ([74.125.82.53]:47335 "EHLO
	mail-wg0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1752147Ab3KDNXu (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Mon, 4 Nov 2013 08:23:50 -0500
Date: Mon, 4 Nov 2013 14:23:46 +0100
From: Frederic Weisbecker <fweisbec@gmail.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Paul Mackerras <paulus@samba.org>, Namhyung Kim <namhyung.kim@lge.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Stephane Eranian <eranian@google.com>, Jiri Olsa <jolsa@redhat.com>,
        Rodrigo Campos <rodrigo@sdfg.com.ar>, Arun Sharma <asharma@fb.com>
Subject: Re: [RFC/PATCHSET 00/14] perf report: Add support to accumulate hist
 periods (v2)
Message-ID: <20131104132345.GB9299@localhost.localdomain>
References: <1383202576-28141-1-git-send-email-namhyung@kernel.org>
 <20131031080932.GA8479@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20131031080932.GA8479@gmail.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu, Oct 31, 2013 at 09:09:32AM +0100, Ingo Molnar wrote:
> 
> 
> * Namhyung Kim <namhyung@kernel.org> wrote:
> 
> > When the -g cumulative option is given, it'll be shown like this:
> > 
> >   $ perf report -g cumulative --stdio
> > 
> >   # Overhead  Overhead (Acc)  Command      Shared Object                   Symbol
> >   # ........  ..............  .......  .................  .......................
> >   #
> >        0.00%          88.29%      abc  libc-2.17.so       [.] __libc_start_main  
> >        0.00%          88.29%      abc  abc                [.] main               
> >        0.00%          88.29%      abc  abc                [.] c                  
> >        0.00%          88.29%      abc  abc                [.] b                  
> >       88.29%          88.29%      abc  abc                [.] a                  
> >        0.00%          11.61%      abc  ld-2.17.so         [k] _dl_sysdep_start   
> >        0.00%           9.43%      abc  ld-2.17.so         [.] dl_main            
> >        9.43%           9.43%      abc  ld-2.17.so         [.] _dl_relocate_object
> >        2.27%           2.27%      abc  [kernel.kallsyms]  [k] page_fault         
> >        0.00%           2.18%      abc  ld-2.17.so         [k] _dl_start_user     
> >        0.00%           0.10%      abc  ld-2.17.so         [.] _start             
> > 
> > As you can see __libc_start_main -> main -> c -> b -> a callchain 
> > show up in the output.
> 
> This looks really useful!
> 
> A couple of details:
> 
> 1)
> 
> This is pretty close to SysProf output, right? So why not use the 
> well-known SysProf naming and call the first column 'self' and the 
> second column 'total'? I think those names are pretty intuitive and 
> it would help people who come from SysProf over to perf.

Makes sense. Or "Overhead" and "Total overhead"?