Messages in this thread |  | | Date | Fri, 9 Nov 2001 14:14:15 -0500 (EST) | From | "Calin A. Culianu" <> | Subject | Re: Athlon cooling |
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On Thu, 8 Nov 2001, Joel Jaeggli wrote:
> CONFIG_APM_CPU_IDLE > > in the apm setup... > > clock throttling is a subject of some debate on the linux kernel list... ;) > but the apm idle call will at least idle the cpu once the idle loop has > been running for a while.
Yes, and i believe this is done via judicious use of the 'hlt' instruction. Also note that on some older K6's there are problems with this instruction.. namely it halts the machine altogether!
> > joelja > > On Thu, 8 Nov 2001, David Grant wrote: > > > There is a program for Windows called CPUIdle, which cools the Athlon > > tremendoulsy. I can get my temp. from 52C down to 36C. It makes the CPU > > truly go idle. Is there anything like this for Linux, and I'm wondering if > > anyone knows the instructions (and/or signals) which could be used to put > > the Athlon into this state. I guess it's more of a question for some APM > > guys, but I thought some people here might know the interface to the Athlon, > > and might thus know how this software cooling works. Actually the low-level > > apm stuff is part of the kernel right? so maybe this is on-topic. > > > > http://www.cpuidle.de/ > > > > Cheers, > > David Grant > > - > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ > > > >
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