Re: [discussion]sched: a rough proposal to enable power saving inscheduler

[Alex Shi]

On 08/16/2012 01:31 PM, Matthew Garrett wrote:

> On Thu, Aug 16, 2012 at 01:03:32PM +0800, Alex Shi wrote:
>> On 08/16/2012 12:19 AM, Matthew Garrett wrote:
>>> Are there workloads in which "power" might provide more performance than 
>>> "performance"? If so, don't use these terms.
>>
>> Power scheme should no chance has better performance in design.
> 
> Power will tend to concentrate processes on packages, 


yes.

while performance 
> will tend to split them across packages?


No, there is still has balance idea in this rough proposal. If a domain
is not overload, it is better to left old tasks unchanged. I should say,
current scheduler is the 'performance' trend scheme.

 What if two cooperating 
> processes gain from being on the same package and sharing cache 
> locality?
> 

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