linux-kernel - Re: [patch] dynticks core: Fix idle time accounting

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Date:	Tue, 03 Oct 2006 22:02:30 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Valdis.Kletnieks@...edu
Cc:	Andrew Morton <akpm@...l.org>, LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>, Jim Gettys <jg@...top.org>,
	John Stultz <johnstul@...ibm.com>,
	David Woodhouse <dwmw2@...radead.org>,
	Arjan van de Ven <arjan@...radead.org>,
	Dave Jones <davej@...hat.com>
Subject: Re: [patch] dynticks core: Fix idle time accounting

On Mon, 2006-10-02 at 17:35 -0400, Valdis.Kletnieks@...edu wrote:
> We could "pump up" the relative counts - if 1 no-hz tick would have been 5ms
> long, increment the count by 5 rather than 1 (for an alledged 1khz tick).
> However, when we do that, we break the property that the sum of the ticks
> in the 'cpu0' line is equal to the number of timer interrupts reported in the
> 'intr' line.

I found a way to fix my thinkos. I put up a queue with all fixes to:

http://www.tglx.de/projects/hrtimers/2.6.18-mm3/patch-2.6.18-mm3-hrt-dyntick1.patches.tar.bz2

Can you please verify if it makes your problem go away ?

	tglx


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