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From: Frederic Weisbecker <fweisbec@gmail.com>
To: Zhaolei <zhaolei@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@elte.hu>,
	Tom Zanussi <tzanussi@gmail.com>,
	KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Oleg Nesterov <oleg@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 0/4] workqueue_trace: Add max execution time mesurement for per worklet
Date: Tue, 28 Apr 2009 23:53:36 +0200	[thread overview]
Message-ID: <20090428215335.GF7337@nowhere> (raw)
In-Reply-To: <49F6DFB5.2040901@cn.fujitsu.com>

On Tue, Apr 28, 2009 at 06:51:33PM +0800, Zhaolei wrote:
> Hi,
> 
> This patch add max execution time mesurement for per worklet.
> It is useful for driver-developer and system administrator to
> know which worklet runs how many time.
> 
> It need applied on top of patchset of:
> workqueue_tracepoint: Add worklet tracepoints for worklet lifecycle tracing
> 
> Output is like:
>  # CPU INSERTED EXECUTED M_EXECus TASKNAME:PID
>  #  |     |        |        |      `-WORKFUNC
>  #  |     |        |        |        |
>      0      905      973          events/0:5
>      0        1        1       37  |-reg_todo+0x0/0x41f
>      0       13       12     2033  |-rt_worker_func+0x0/0x219
>      0       49       48     3157  |-mce_work_fn+0x0/0x31
>      0       14       13      939  |-check_corruption+0x0/0x2a
>      0      707      706     3826  |-vmstat_update+0x0/0x33
>      0        1        1     1846  |-power_supply_changed_work+0x0/0x3c
>      0       11       11     2879  |-console_callback+0x0/0xe1
>      0       30       29     1579  |-do_cache_clean+0x0/0x37
>      0       74       74     2841  |-test_work+0x0/0x53
>      0        3        2      252  |-rekey_seq_generator+0x0/0x5a
>      0        1        1       21  |-grace_ender+0x0/0x14
>      0        1        1     3701  `-flush_to_ldisc+0x0/0x15d
>      0        0        0          cpuset:6
>      0      658      658          khelper:7
>      0      658      658     5735  `-__call_usermodehelper+0x0/0x77
>      0        0        0          netns:11
>  ...
> 
> Thanks
> Zhaolei
> 

Thanks Zhaolei,

I've applied this series and the previous one to
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git
 tracing/workqueue


  parent reply	other threads:[~2009-04-28 21:53 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-28 10:51 [PATCH 0/4] workqueue_trace: Add max execution time mesurement for per worklet Zhaolei
2009-04-28 10:52 ` [PATCH 1/4] tracing/workqueue: turn workfunc_stats::inserted into unsigned int Zhaolei
2009-04-28 10:53 ` [PATCH 2/4] tracing/workqueue: Avoid accessing task_struct's member variable in stat file read Zhaolei
2009-04-28 10:54 ` [PATCH 3/4] tracing/workqueue: Use list_for_each_entry instrad of list_for_each_entry_safe in probe_workqueue_destruction() Zhaolei
2009-04-28 10:57 ` [PATCH 4/4] tracing/workqueue: Add max execution time mesurement for per worklet Zhaolei
2009-04-28 17:14   ` Oleg Nesterov
2009-04-30  1:15     ` Zhaolei
2009-04-28 21:53 ` Frederic Weisbecker [this message]
2009-04-29  7:06 ` [PATCH 0/4] workqueue_trace: " Andrew Morton
2009-04-29 13:33   ` Frederic Weisbecker
2009-04-29 13:43     ` Steven Rostedt
2009-04-29 13:45     ` Steven Rostedt
2009-04-29 15:36       ` Andrew Morton
2009-04-29 15:49         ` Frederic Weisbecker
2009-04-29 19:10           ` Ingo Molnar
2009-04-30  1:10     ` [PATCH 0/4] workqueue_trace: Add max execution time mesurementfor " Zhaolei

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