Processor Scaling
Derek Broughton
derek at pointerstop.ca
Sat Jan 3 17:54:11 UTC 2009
Rashkae wrote:
> Ray Parrish wrote:
>
>>
>> Someone else in this thread expressed concern over cpu temperature. I
>> just finished a four hour virus scan of my Windows drive, and during the
>> entire scan the cpu stayed at 107 F, and now is at 104 F, and it never
>> seems to get any hotter than that.
>>
>
> The difference in Power from CPU running idle at full Mhz and running
> idle at half Mhz (ie, with CPU scaling enabled) should be in the
> neighborhood of 5 to 10 watts. Significant only if multiplied by dozens
> or hundreds of computers.
But of course it isn't multiplied by dozens or hundreds - it's multiplied by
many MILLIONS. And as anyone who has lived in an off-grid home can attest, 5
or 10 watts matters.
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