Re: Bug#396117: ITP: cpufreq-detect -- detect CPU frequency control driver
Peter Palfrader wrote:
> How come it never outputs p4_clockmod? I use that happily on several
> different machines.
I can confirm I've tried it on a machine. The performance impact was
substantial (at least if I allowed it to go to its lowest speed); the
power consumption difference was immeasurable.
Have you actually measured the power savings?
 Immeasurable as in the measurement equipment (an UPS with load
indication, in this case) could not notice any difference. The same UPS
does notice a substantial difference with K8 chips.