From: Ingo Molnar <mingo@elte.hu>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Damien Wyart <damien.wyart@free.fr>,
Mike Galbraith <efault@gmx.de>,
linux-kernel@vger.kernel.org,
paulmck <paulmck@linux.vnet.ibm.com>
Subject: Re: Very high CPU load when idle with 3.0-rc1
Date: Mon, 30 May 2011 14:17:59 +0200 [thread overview]
Message-ID: <20110530121759.GI22324@elte.hu> (raw)
In-Reply-To: <1306755291.1200.2872.camel@twins>
* Peter Zijlstra <peterz@infradead.org> wrote:
> The problem that patch tried to address is that the RCU threads
> could stay in UNINTERRUPTIBLE state for quite a while and
> triggering the hung task detector due to on-demand wake-ups.
and it's not just the hung task detector, but obviously also the load
average itself that would be skewed in this original bug case as
well.
Thanks,
Ingo
next prev parent reply other threads:[~2011-05-30 12:18 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-30 5:59 Very high CPU load when idle with 3.0-rc1 Damien Wyart
2011-05-30 11:34 ` Peter Zijlstra
2011-05-30 12:17 ` Ingo Molnar [this message]
2011-05-30 13:10 ` Mike Galbraith
2011-05-30 16:23 ` Paul E. McKenney
2011-05-30 16:41 ` Paul E. McKenney
2011-05-30 16:47 ` Peter Zijlstra
2011-05-30 16:46 ` Peter Zijlstra
2011-05-30 21:29 ` Paul E. McKenney
2011-05-30 21:35 ` Peter Zijlstra
2011-05-31 1:45 ` Paul E. McKenney
2011-05-30 17:19 ` Peter Zijlstra
2011-05-30 21:28 ` Paul E. McKenney
2011-05-30 21:33 ` Peter Zijlstra
2011-05-31 1:45 ` Paul E. McKenney
2011-06-01 11:05 ` Peter Zijlstra
2011-06-01 14:37 ` Paul E. McKenney
2011-06-01 16:58 ` Peter Zijlstra
2011-06-01 18:19 ` Paul E. McKenney
2011-05-31 12:30 ` [tip:core/urgent] rcu: Cure load woes tip-bot for Peter Zijlstra
2011-05-30 11:50 ` Very high CPU load when idle with 3.0-rc1 Damien Wyart
2011-05-30 12:22 ` Morten P.D. Stevens
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