[CFT] Sparse Cstate Support -- Its possible, that I don't know
what I'm doing.
Sean Bruno
seanbru at yahoo-inc.com
Wed Jun 20 16:12:07 UTC 2012
On Tue, 2012-06-19 at 22:00 -0700, Andriy Gapon wrote:
> > It seems that the rc.conf value of performance_cx_lowest="LOW" is
> what I
> > really want, not economy_cx_lowest.
>
> Yes. Could you please try this without using your patch?
>
> I get an impression that its effect was to actually request C2 when
> cx_lowest is
> set to C1.
>
> --
> Andriy Gapon
Confirmed. If I set performance_cx_lowest="LOW" then the system sets
the "C2" state and really implements C3 correctly. I see a 25 watt
power saving without the patch on the Dell r410.
sean
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