Re: [RFC PATCH v4 09/12] sched/fair: Introduce an energy estimation helper function

[Peter Zijlstra]

On Fri, Jul 06, 2018 at 04:12:12PM +0100, Quentin Perret wrote:

> I guess it is also worth mentioning that in the case mentioned above the
> scheduling decisions made inside one root domain can indirectly be
> impacted by the scheduling decisions made in another root domain. Some
> CPUs inside one root domain might look expensive to use simply because
> they run at a high OPP because of other CPUs of the same FD being
> over-used in another root domain.

That's simply how it is. There's nothing you can do about it, they share
a clock, teh end.