Re: [patch 00/18] CFS Bandwidth Control v7.2

Peter Zijlstra
2011-09-13T14:00:51Z

On Tue, 2011-09-13 at 16:10 +0400, Vladimir Davydov wrote:

> In other words, I'd like to know if your code (or the scheduler code)
> tries to gather all tasks of the same cgroup on such a subset of all
> CPUs

No

> so that the tasks can't execute less CPUs without losing quota
> during each period.

what?!

> And if not, are you going to address the issue?

and no.

There is nothing special about being part of a cgroup that warrants
that, as for pipes the scheduler already tries to pull the waking task
to the cpu of the waker if possible (or an idle cache sibling).