On 04/15/2013 05:52 PM, Borislav Petkov wrote:
> On Mon, Apr 15, 2013 at 02:16:55PM +0800, Alex Shi wrote:
>> And I need to say again. the powersaving policy just effect on system
>> under utilisation. when system goes busy, it won't has effect.
>> performance oriented policy will take over balance behaviour.
>
> And AFACU your patches, you do this automatically, right?
Yes
In which case,
> an underutilized system will have switched to powersaving balancing and
> will use *more* energy to retire the workload. Correct?
>
For fairness and total threads consideration, powersaving cost quit
similar energy on kbuild benchmark, and even better.
17348.850 27400.458 15973.776
13737.493 18487.248 12167.816
11057.004 16080.750 11623.661
17288.102 27637.176 16560.375
10356.52 18482.584 12504.702
10905.772 16190.447 11125.625
10785.621 16113.330 11542.140
--
Thanks
Alex
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