From: Frederic Weisbecker <fweisbec@gmail.com>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Borislav Petkov <bp@alien8.de>,
linux-kernel@vger.kernel.org
Subject: Re: [sched next] overflowed cpu time for kernel threads in /proc/PID/stat
Date: Tue, 20 Aug 2013 17:42:59 +0200 [thread overview]
Message-ID: <20130820154257.GD17441@somewhere> (raw)
In-Reply-To: <20130820153549.GB2315@swordfish.minsk.epam.com>
On Tue, Aug 20, 2013 at 06:35:50PM +0300, Sergey Senozhatsky wrote:
> On (08/20/13 17:15), Frederic Weisbecker wrote:
> > On Tue, Aug 20, 2013 at 02:14:26PM +0300, Sergey Senozhatsky wrote:
> > Hello,
> >
> > Please upload your config.
> >
> > I'm adding Stanislaw in Cc in case it relates to cputime scaling.
> >
>
> please find attached.
>
> -ss
> #
> # CPU/Task time and stats accounting
> #
> CONFIG_VIRT_CPU_ACCOUNTING=y
> CONFIG_VIRT_CPU_ACCOUNTING_GEN=y
So it happens with full dynticks cputime accounting.
How reproducable is this? Does it always happen?
Does it happen with CONFIG_TICK_CPU_ACCOUNTING as well? (you'll
need to deactivate full dynticks.)
Thanks.
next prev parent reply other threads:[~2013-08-20 15:43 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-20 11:14 [sched next] overflowed cpu time for kernel threads in /proc/PID/stat Sergey Senozhatsky
2013-08-20 15:15 ` Frederic Weisbecker
2013-08-20 15:35 ` Sergey Senozhatsky
2013-08-20 15:42 ` Frederic Weisbecker [this message]
2013-08-20 15:53 ` Sergey Senozhatsky
2013-08-20 18:48 ` Sergey Senozhatsky
2013-08-21 15:39 ` Sergey Senozhatsky
2013-08-30 23:04 ` Frederic Weisbecker
2013-08-31 19:01 ` Sergey Senozhatsky
2013-09-08 10:56 ` Frederic Weisbecker
2013-09-08 10:59 ` Frederic Weisbecker
2013-09-02 12:28 ` Sergey Senozhatsky
2013-09-02 13:07 ` Frederic Weisbecker
2013-09-02 13:39 ` Sergey Senozhatsky
2013-09-02 13:50 ` Stanislaw Gruszka
2013-09-02 14:00 ` Sergey Senozhatsky
2013-09-03 8:43 ` Stanislaw Gruszka
2013-09-03 9:33 ` Sergey Senozhatsky
2013-09-03 13:15 ` Sergey Senozhatsky
2013-09-03 18:09 ` Sergey Senozhatsky
2013-09-03 18:32 ` Ingo Molnar
2013-09-04 12:08 ` [PATCH -tip] sched/cputime: do not scale when utime == 0 Stanislaw Gruszka
2013-09-04 12:33 ` Ingo Molnar
2013-09-04 13:16 ` [PATCH -tip v2] " Stanislaw Gruszka
2013-09-04 14:31 ` Ingo Molnar
2013-09-04 14:37 ` [tip:timers/urgent] sched/cputime: Do " tip-bot for Stanislaw Gruszka
2013-09-04 15:35 ` Frederic Weisbecker
2013-09-02 14:13 ` [sched next] overflowed cpu time for kernel threads in /proc/PID/stat Frederic Weisbecker
2013-09-02 14:24 ` Sergey Senozhatsky
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