From: Ingo Molnar <mingo@elte.hu>
To: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Cc: mingo@redhat.com, linux-kernel@vger.kernel.org,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: 2.6.24-git4+ regression
Date: Mon, 4 Feb 2008 14:04:18 +0100 [thread overview]
Message-ID: <20080204130418.GB8730@elte.hu> (raw)
In-Reply-To: <20080204122900.GA4287@ics.muni.cz>
* Lukas Hejtmanek <xhejtman@ics.muni.cz> wrote:
> On Mon, Feb 04, 2008 at 01:01:32PM +0100, Ingo Molnar wrote:
> >
> > * Lukas Hejtmanek <xhejtman@ics.muni.cz> wrote:
> >
> > > but in such a case, kernel 2.6.24-git13 does oops at startup in
> > > sched_slice.
> >
> > could you tell me more about this oops? You booted unmodified, latest
> > -git and it oopsed in sched_slice()? The patch below should work around
> > any oopses in sched_slice(). [but this is really a 'must not happen'
> > scenario - so a just-for-testing patch]
>
> No, I booted modified lates git to see if mentioned patch (revertin
> slices) solves horrible non-interactivy problem. With your fix, I can
> boot now but the patch did not help. Make -j2 in kernel sources
> significantly decreases interactivity. Any ideas?
yes, please run latencytop - does it pinpoint any latency source? Enable
CONFIG_LATENCYTOP in the -git13 kernel and run the utility from
latencytop.org. Also, please send me the output of this script:
http://people.redhat.com/mingo/cfs-scheduler/tools/cfs-debug-info.sh
Ingo
next prev parent reply other threads:[~2008-02-04 13:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-30 13:56 2.6.24-git4+ regression Lukas Hejtmanek
2008-01-31 10:29 ` Ingo Molnar
2008-01-31 10:55 ` Lukas Hejtmanek
2008-02-04 11:17 ` Lukas Hejtmanek
2008-02-04 11:36 ` Peter Zijlstra
2008-02-04 14:36 ` Lukas Hejtmanek
2008-02-04 14:45 ` Peter Zijlstra
2008-02-04 17:00 ` Lukas Hejtmanek
2008-02-04 12:01 ` Ingo Molnar
2008-02-04 12:29 ` Lukas Hejtmanek
2008-02-04 13:04 ` Ingo Molnar [this message]
2008-02-04 13:49 ` Lukas Hejtmanek
2008-02-14 16:55 ` Srivatsa Vaddagiri
2008-02-17 20:26 ` Lukas Hejtmanek
2008-02-18 4:28 ` Ingo Molnar
2008-02-18 7:38 ` Mike Galbraith
2008-02-18 8:20 ` Srivatsa Vaddagiri
2008-02-18 8:36 ` Mike Galbraith
[not found] ` <1203325554.4889.2.camel@homer.simson.net>
[not found] ` <1203345102.5984.1.camel@homer.simson.net>
2008-02-19 8:15 ` Mike Galbraith
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