From: Mike Galbraith <efault@gmx.de>
To: Michael Witten <mfwitten@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 'autogroup' sched code KILLING responsiveness
Date: Sun, 23 Jan 2011 06:42:14 +0100 [thread overview]
Message-ID: <1295761334.7883.5.camel@marge.simson.net> (raw)
In-Reply-To: <AANLkTinU7kFRSkNZ2JcyGYPWRF9LP48FqWZknVafm56a@mail.gmail.com>
On Sat, 2011-01-22 at 21:32 -0600, Michael Witten wrote:
> On Sat, Jan 22, 2011 at 15:23, Michael Witten <mfwitten@gmail.com> wrote:
> > Of course, I have none of these problems when I disable:
> >
> > CONFIG_AUTOGROUP_SCHED
>
> Of course, if CONFIG_AUTOGROUP_SCHED is enabled, then the problem also
> goes away if the kernel is booted using the `noautogroup' parameter.
I built a UP kernel for my old P4 box, and fair group scheduling doesn't
appear to be working at all, whereas SMP does. It was usable, but
pretty horrible.
I have other (hot) things to do atm, but will investigate this. Thanks.
-Mike
next prev parent reply other threads:[~2011-01-23 5:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-21 18:20 'autogroup' sched code KILLING responsiveness Michael Witten
2011-01-21 22:27 ` Mike Galbraith
2011-01-21 22:39 ` Michael Witten
2011-01-22 3:22 ` Mike Galbraith
2011-01-22 21:23 ` Michael Witten
2011-01-23 3:32 ` Michael Witten
2011-01-23 5:42 ` Mike Galbraith [this message]
2011-01-23 10:50 ` Christian Kujau
2011-01-23 11:19 ` Christian Kujau
2011-01-23 14:54 ` Yong Zhang
2011-01-23 15:03 ` [PATCH] sched: fix autogroup nice tune on UP Yong Zhang
2011-01-23 15:16 ` Pekka Enberg
2011-01-24 3:17 ` Yong Zhang
2011-01-24 5:40 ` [PATCH V2] " Yong Zhang
2011-01-24 5:54 ` Pekka Enberg
2011-01-24 6:11 ` Yong Zhang
2011-01-24 6:18 ` Pekka Enberg
2011-01-24 7:33 ` [PATCH V3] " Yong Zhang
2011-01-24 8:01 ` Pekka Enberg
2011-01-24 9:00 ` Mike Galbraith
2011-01-24 10:51 ` [tip:sched/urgent] sched: Fix poor interactivity on UP systems due to group scheduler nice tune bug tip-bot for Yong Zhang
2011-01-23 15:15 ` 'autogroup' sched code KILLING responsiveness Ingo Molnar
2011-01-23 15:53 ` Michael Witten
2011-01-23 18:52 ` Andreas Mohr
2011-01-23 23:57 ` Christian Kujau
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