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 S1754021Ab3KUNJJ (ORCPT <rfc822;w@1wt.eu>);
	Thu, 21 Nov 2013 08:09:09 -0500
Received: from cdptpa-outbound-snat.email.rr.com ([107.14.166.225]:14775 "EHLO
	cdptpa-oedge-vip.email.rr.com" rhost-flags-OK-OK-OK-FAIL)
	by vger.kernel.org with ESMTP id S1751491Ab3KUNJH (ORCPT
	<rfc822;linux-kernel@vger.kernel.org>);
	Thu, 21 Nov 2013 08:09:07 -0500
Date: Thu, 21 Nov 2013 08:09:01 -0500
From: Steven Rostedt <rostedt@goodmis.org>
To: Jiri Olsa <jolsa@redhat.com>
Cc: linux-kernel@vger.kernel.org, Corey Ashford <cjashfor@linux.vnet.ibm.com>,
        Frederic Weisbecker <fweisbec@gmail.com>, Ingo Molnar <mingo@elte.hu>,
        Namhyung Kim <namhyung@kernel.org>, Paul Mackerras <paulus@samba.org>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Arnaldo Carvalho de Melo <acme@redhat.com>,
        David Ahern <dsahern@gmail.com>
Subject: Re: [PATCH 04/22] tools lib traceevent: Add jbd2 plugin
Message-ID: <20131121080901.269501eb@gandalf.local.home>
In-Reply-To: <1385031680-9014-5-git-send-email-jolsa@redhat.com>
References: <1385031680-9014-1-git-send-email-jolsa@redhat.com>
	<1385031680-9014-5-git-send-email-jolsa@redhat.com>
X-Mailer: Claws Mail 3.9.2 (GTK+ 2.24.20; x86_64-pc-linux-gnu)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
X-RR-Connecting-IP: 107.14.168.118:25
X-Cloudmark-Score: 0
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu, 21 Nov 2013 12:01:02 +0100
Jiri Olsa <jolsa@redhat.com> wrote:

> Backporting jbd2 plugin.
> 
> Backported from Steven Rostedt's trace-cmd repo (HEAD 0f2c2fb):
> git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git
> 
> This plugin adds field resolving functions for following
> tracepoint events:
>   jbd2:jbd2_checkpoint_stats
>   jbd2:jbd2_run_stats
> 
> The diff of 'perf script' output generated by old and new code:
> (data was generated by 'perf record -e 'jbd2:jbd2_run_stats,jbd2:jbd2_checkpoint_stats' -a')
> 
> --- script.jbd2.old
> +++ script.jbd2.new
> -     jbd2/dm-3-8   576 [000]  2983.748423: jbd2:jbd2_checkpoint_stats: [FAILED TO PARSE] dev=265289731 tid=0x3f2bbb chp_time=0x0 forced_to_close=0 written=0 dropped=2
> +     jbd2/dm-3-8   576 [000]  2983.748423: jbd2:jbd2_checkpoint_stats: dev 253,3 tid 4139963 chp_time 0 forced_to_close 0 written 0 dropped 2
> -     jbd2/dm-3-8   576 [000]  2983.852789: jbd2:jbd2_run_stats: [FAILED TO PARSE] dev=265289731 tid=0x3f2bc0 wait=0x0 request_delay=0x0 running=0x138d locked=0x0 flushing=0x0 logging=0x68 handle_count=2995 blocks=17 blocks_logged=18
> +     jbd2/dm-3-8   576 [000]  2983.852789: jbd2:jbd2_run_stats: dev 253,3 tid 4139968 wait 0 request_delay 0 running 5005 locked 0 flushing 0 logging 104 handle_count 2995 blocks 17 blocks_logged 18
> 
> This plugin also adds jbd2_dev_to_name function, which
> was removed from jdb2 tracepoints recently. Keeping it
> in for backward compatibility reasons.
> 
> Signed-off-by: Jiri Olsa <jolsa@redhat.com>
> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Ingo Molnar <mingo@elte.hu>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
> Cc: Steven Rostedt <rostedt@goodmis.org>

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

-- Steve

> Cc: David Ahern <dsahern@gmail.com>
> ---