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Message-ID: <20070911204022.108895d5@laptopd505.fenrus.org>
Date:	Tue, 11 Sep 2007 20:40:22 +0100
From:	Arjan van de Ven <arjan@...radead.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	john stultz <johnstul@...ibm.com>, Ingo Molnar <mingo@...e.hu>,
	Len Brown <lenb@...nel.org>,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>
Subject: Re: clockevents: fix resume logic

On Tue, 11 Sep 2007 11:25:31 -0700
Andrew Morton <akpm@...ux-foundation.org> wrote:
> 
> dmesg without the cpuidle patch:
> http://userweb.kernel.org/~akpm/dmesg-bad.txt dmesg with the cpuidle
> patch: http://userweb.kernel.org/~akpm/dmesg-good.txt difference:
> http://userweb.kernel.org/~akpm/dmesg-diff.txt
> 
> there doesn't seem to be a lot of difference in the time handling,
> except there are large changes in when things happen in the bootup
> sequence.

powertop can show you which C-states are actually used; it could be a
theory that in the working case the deeper C-states aren't used (which
then means lapic keeps working etc)...
powertop would show this change ....
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