[ltp] frequencies, throttling

Daniel linux-thinkpad@linux-thinkpad.org
Sun, 4 Mar 2007 22:01:37 +0100


On Sun, Mar 04, 2007 at 02:41:56PM -0500, Brad Langhorst wrote:
> > Throttling does not save energy but should keep the CPU cooler.
> 
> I'm not trying to be confrontational... but I think there's a physics
> problem with this answer.
> If the cpu is running cooler it's must be using less power than if it's
> running hotter i think. 

To quote the german wikipedia:
"Throttling means the omitting of clock cycles in CPUs [...] throttling
is used to reduce the temperature in case of overheating [...] the power
saving effect is less than linear."

Daniel
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