Re: enhanced intel speedstep feature was Re: speedstep-centrino on dothan

[Dave Jones]

On Thu, Jul 07, 2005 at 10:00:27PM +0200, st3@xxxxxxxxxx wrote:
  > Enabling, say, a duty cycle of 12.5% means that the CPU chip will be driven
 > by clock just one time every eight, thus reducing power consumption and
 > temperature (and it speeds down dramatically the CPU, too =).
 > 
 > I tested it so far on my Pentium M Dothan 715 and on a Dothan 725.
 > 
 > What do you think, could this be useful? I could provide a patch or a
 > stand-alone module. Should I write an interface to sysfs?

You just reinvented the p4-clockmod driver :-)
This hasn't been seen to save any power whatsoever that I've seen.
I've heard a few reports that it reduces heat for a few folks, but
betting on it increasing your battery life is probably a push.

		Dave

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