From: Jens Axboe <jens.axboe@oracle.com>
To: Christian <christiand59@web.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: sluggish system responsiveness under higher IO load
Date: Sun, 8 Oct 2006 19:05:38 +0200 [thread overview]
Message-ID: <20061008170538.GZ8814@kernel.dk> (raw)
In-Reply-To: <200610081628.55012.christiand59@web.de>
On Sun, Oct 08 2006, Christian wrote:
> Am Freitag, 6. Oktober 2006 17:58 schrieb Paolo Ornati:
> > On Sun, 13 Aug 2006 18:15:12 +0200
> >
> > Matthias Dahl <mlkernel@mortal-soul.de> wrote:
> > > Just let me know once you got them, so I can safely delete them again.
> > >
> > > At the moment, I am trying without preemption but for example doing a
> > > untar kernel sources still results in sluggish system responsiveness. :-(
> >
> > I used to have this type of problem and 2.6.19-rc1 looks much better
> > than 2.6.18.
> >
> > I'm using CONFIG_PREEMPT + CONFIG_PREEMPT_BKL, CFQ i/o scheduler
> > and /proc/sys/vm/swappiness = 20.
>
>
> Which change in the new kernel has made it better? I was following the lkml
> very close and didn't see any change that could have fixed that problem.
There is a substantial CFQ update, so it could be that. Or it could be
something unrelated of course, I didn't check if eg the cpu scheduler
changed much. Or vm :-)
--
Jens Axboe
next prev parent reply other threads:[~2006-10-08 17:05 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-06 10:00 sluggish system responsiveness under higher IO load Matthias Dahl
2006-08-06 10:15 ` Andrew Morton
2006-08-06 13:54 ` Matthias Dahl
2006-08-06 19:37 ` Andrew Morton
2006-08-08 15:47 ` Matthias Dahl
2006-08-07 13:48 ` Jens Axboe
2006-08-08 15:56 ` Matthias Dahl
2006-08-08 17:44 ` Matthias Dahl
2006-08-08 19:02 ` Jens Axboe
2006-08-10 12:28 ` Jens Axboe
2006-08-11 11:40 ` Matthias Dahl
2006-08-13 16:15 ` Matthias Dahl
2006-10-06 15:58 ` Paolo Ornati
2006-10-08 14:28 ` Christian
2006-10-08 17:05 ` Jens Axboe [this message]
2006-10-08 23:50 ` Jesper Juhl
2006-10-09 5:58 ` Jens Axboe
2006-10-14 14:39 ` Matthias Dahl
2006-10-14 14:57 ` Paolo Ornati
2006-10-14 18:20 ` Mike Galbraith
2006-09-03 11:15 ` Matthias Dahl
2006-09-15 18:17 ` Jens Axboe
2006-09-24 14:32 ` Matthias Dahl
2006-09-24 20:27 ` Mike Galbraith
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