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

[Arjan van de Ven]

> *Power policy*:
> 
> So how is power policy different? As Peter says,'pack more than spread
> more'.

this is ... a dubiously general statement.

for good power, at least on Intel cpus, you want to spread. Parallelism is efficient.

the only thing you do not want to do, is wake cpus up for
tasks that only run extremely briefly (think "100 usec" or less).

so maybe the balance interval is slightly different, or more, you don't balance tasks that
historically ran only for brief periods


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