Messages in this thread | | | Date | Tue, 11 Mar 2008 16:20:26 +0100 | From | Pierre Ossman <> | Subject | Re: [linux-pm] [PATCH] cpuidle: avoid singing capacitors |
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On Tue, 11 Mar 2008 11:48:22 +0100 Andi Kleen <andi@firstfloor.org> wrote:
> > I have now found a very hacky workaround that is slightly better than > > disabling C3 altogether; making C3 exclusive to one core at a time. It > > seems to kill the noise and the system now spends 50% in C3, instead of > > 0%. > > I suspect it won't do much of C3 if only one core is idle this way. > Most likely you just disabled C3 this way in a way invisible to software. >
What a letdown... I'll pull out the old watt meter again and see if I can confirm that.
Rgds -- -- Pierre Ossman
Linux kernel, MMC maintainer http://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org
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