* 2.6.27-rc1 process time accounting
@ 2008-07-31 10:43 Lukas Hejtmanek
2008-07-31 21:41 ` Andrew Morton
0 siblings, 1 reply; 6+ messages in thread
From: Lukas Hejtmanek @ 2008-07-31 10:43 UTC (permalink / raw)
To: linux-kernel
Hello,
I think there is a regression since 2.6.26 in time accounting of processes.
kthreadd and console-kit-daemons claim they spent 5124095 hours using CPU.
--
Lukáš Hejtmánek
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.27-rc1 process time accounting
2008-07-31 10:43 2.6.27-rc1 process time accounting Lukas Hejtmanek
@ 2008-07-31 21:41 ` Andrew Morton
2008-07-31 22:05 ` Lukas Hejtmanek
2008-08-01 3:03 ` Parag Warudkar
0 siblings, 2 replies; 6+ messages in thread
From: Andrew Morton @ 2008-07-31 21:41 UTC (permalink / raw)
To: Lukas Hejtmanek; +Cc: linux-kernel
On Thu, 31 Jul 2008 12:43:19 +0200
Lukas Hejtmanek <xhejtman@ics.muni.cz> wrote:
> Hello,
>
> I think there is a regression since 2.6.26 in time accounting of processes.
Could be - we changed quite a bit.
> kthreadd and console-kit-daemons claim they spent 5124095 hours using CPU.
My 2.6.27-rc1-mm1 kthreadd looks OK in `top'. How are you displaying
this information? More details if possible, please..
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.27-rc1 process time accounting
2008-07-31 21:41 ` Andrew Morton
@ 2008-07-31 22:05 ` Lukas Hejtmanek
2008-08-01 3:03 ` Parag Warudkar
1 sibling, 0 replies; 6+ messages in thread
From: Lukas Hejtmanek @ 2008-07-31 22:05 UTC (permalink / raw)
To: Andrew Morton; +Cc: linux-kernel
On Thu, Jul 31, 2008 at 02:41:47PM -0700, Andrew Morton wrote:
> > kthreadd and console-kit-daemons claim they spent 5124095 hours using CPU.
>
> My 2.6.27-rc1-mm1 kthreadd looks OK in `top'. How are you displaying
> this information? More details if possible, please..
ps aux | grep kthread
root 2 151451100 0.0 0 0 ? S< 09:49 21114580:11 [kthreadd]
top:
2489 root 20 0 102m 3300 1608 S 0.0 0.2 5124095h console-kit-dae
2 root 15 -5 0 0 0 S 0.0 0.0 5124095h kthreadd
--
Lukáš Hejtmánek
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.27-rc1 process time accounting
2008-07-31 21:41 ` Andrew Morton
2008-07-31 22:05 ` Lukas Hejtmanek
@ 2008-08-01 3:03 ` Parag Warudkar
2008-08-01 7:30 ` Peter Zijlstra
1 sibling, 1 reply; 6+ messages in thread
From: Parag Warudkar @ 2008-08-01 3:03 UTC (permalink / raw)
To: linux-kernel
Andrew Morton <akpm <at> linux-foundation.org> writes:
>
> On Thu, 31 Jul 2008 12:43:19 +0200
> Lukas Hejtmanek <xhejtman <at> ics.muni.cz> wrote:
>
> > Hello,
> >
> > I think there is a regression since 2.6.26 in time accounting of processes.
>
> Could be - we changed quite a bit.
>
> > kthreadd and console-kit-daemons claim they spent 5124095 hours using CPU.
>
> My 2.6.27-rc1-mm1 kthreadd looks OK in `top'. How are you displaying
> this information? More details if possible, please..
>
Top's doing crazy things on my machine too after booting 2.6.27-rc1 - like Xorg
showing 859% CPU usage on 4 CPU machine and generally any process running even
shortly shows up as using anywhere between 100 and 150% CPU.
This is on x86 - Q6600 6Gb RAM. Let me know if anything else would be
interesting to know.
Parag
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.27-rc1 process time accounting
2008-08-01 3:03 ` Parag Warudkar
@ 2008-08-01 7:30 ` Peter Zijlstra
2008-08-02 1:02 ` Parag Warudkar
0 siblings, 1 reply; 6+ messages in thread
From: Peter Zijlstra @ 2008-08-01 7:30 UTC (permalink / raw)
To: Parag Warudkar; +Cc: linux-kernel
On Fri, 2008-08-01 at 03:03 +0000, Parag Warudkar wrote:
> Andrew Morton <akpm <at> linux-foundation.org> writes:
>
> >
> > On Thu, 31 Jul 2008 12:43:19 +0200
> > Lukas Hejtmanek <xhejtman <at> ics.muni.cz> wrote:
> >
> > > Hello,
> > >
> > > I think there is a regression since 2.6.26 in time accounting of processes.
> >
> > Could be - we changed quite a bit.
> >
> > > kthreadd and console-kit-daemons claim they spent 5124095 hours using CPU.
> >
> > My 2.6.27-rc1-mm1 kthreadd looks OK in `top'. How are you displaying
> > this information? More details if possible, please..
> >
>
> Top's doing crazy things on my machine too after booting 2.6.27-rc1 - like Xorg
> showing 859% CPU usage on 4 CPU machine and generally any process running even
> shortly shows up as using anywhere between 100 and 150% CPU.
>
> This is on x86 - Q6600 6Gb RAM. Let me know if anything else would be
> interesting to know.
Can you test with tip/sched/clock ?
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: 2.6.27-rc1 process time accounting
2008-08-01 7:30 ` Peter Zijlstra
@ 2008-08-02 1:02 ` Parag Warudkar
0 siblings, 0 replies; 6+ messages in thread
From: Parag Warudkar @ 2008-08-02 1:02 UTC (permalink / raw)
To: Peter Zijlstra; +Cc: linux-kernel, akpm@osdl.org
On Fri, Aug 1, 2008 at 3:30 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> Can you test with tip/sched/clock ?
-tip from today seems alright - for the 5 minutes I tested with
x11perf the top shows max CPU usage around 125%.
I assume changes from -tip will flow in mainline sooner or later - if
so this should be sorted out soon.
Parag
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2008-08-02 1:02 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2008-07-31 10:43 2.6.27-rc1 process time accounting Lukas Hejtmanek
2008-07-31 21:41 ` Andrew Morton
2008-07-31 22:05 ` Lukas Hejtmanek
2008-08-01 3:03 ` Parag Warudkar
2008-08-01 7:30 ` Peter Zijlstra
2008-08-02 1:02 ` Parag Warudkar
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