From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Chuck Ebbert <cebbert@redhat.com>
Cc: "Luca Tettamanti" <kronos.it@gmail.com>,
"Frans Pop" <elendil@planet.nl>, "Willy Tarreau" <w@1wt.eu>,
LKML <linux-kernel@vger.kernel.org>,
"Ilpo Järvinen" <ilpo.jarvinen@helsinki.fi>,
"Alexander E. Patrakov" <patrakov@ums.usu.ru>,
"Ingo Molnar" <mingo@elte.hu>
Subject: Re: [PATCH for testing] Re: Decreasing stime running confuses top
Date: Fri, 5 Oct 2007 00:31:16 +0200 [thread overview]
Message-ID: <200710050031.16275.borntraeger@de.ibm.com> (raw)
In-Reply-To: <470562B9.6060200@redhat.com>
Am Freitag, 5. Oktober 2007 schrieb Chuck Ebbert:
> On 10/04/2007 05:10 PM, Christian Borntraeger wrote:
>
> > <patch reverting to 2.6.22 behavior>
>
> Alternative patch:
>
> procfs: Don't read runtime twice when computing task's stime
>
> Current code reads p->se.sum_exec_runtime twice and goes through
> multiple type conversions to calculate stime. Read it once and
> skip some of the conversions.
>
> Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Looks better and makes the code nicer. s390 and power should work as well as
CONFIG_VIRT_CPU_ACCOUNTING is unaffected.
If Frans successfully tests this patch, feel free to add
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Christian
next prev parent reply other threads:[~2007-10-04 22:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-03 12:33 top displaying 9999% CPU usage Frans Pop
2007-10-03 12:52 ` Jan Engelhardt
2007-10-03 13:03 ` Alexander E. Patrakov
2007-10-03 14:04 ` Frans Pop
2007-10-03 14:43 ` Ilpo Järvinen
2007-10-03 14:51 ` Ilpo Järvinen
2007-10-03 19:27 ` Decreasing stime running confuses top (was: top displaying 9999% CPU usage) Frans Pop
2007-10-03 20:24 ` Willy Tarreau
2007-10-03 23:32 ` Frans Pop
2007-10-04 19:19 ` Luca Tettamanti
2007-10-04 19:32 ` Decreasing stime running confuses top Chuck Ebbert
2007-10-04 20:00 ` Christian Borntraeger
2007-10-04 20:21 ` Chuck Ebbert
2007-10-04 21:10 ` [PATCH for testing] " Christian Borntraeger
2007-10-04 22:01 ` Chuck Ebbert
2007-10-04 22:31 ` Christian Borntraeger [this message]
2007-10-05 11:43 ` Luca
2007-10-05 15:07 ` Frans Pop
2007-10-05 15:49 ` Frans Pop
2007-10-08 16:49 ` Christian Borntraeger
2007-10-08 17:00 ` Ingo Molnar
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