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SubjectRe: [PATCH] virtual sched_clock() for s390

* Jan Glauber <jang@linux.vnet.ibm.com> wrote:

> > still, CFS needs time measurement across idle periods as well, for
> > another purpose: to be able to do precise task statistics for /proc.
> > (for top, ps, etc.) So it's still true that sched_clock() should
> > include idle periods too.
>
> I'm not sure, s390 already has an implemetation for precise accounting
> in the architecture code, does CFS also improve accounting data?

what kind of precise accounting does s390 have in the architecture code?
CFS changes task (and load) accounting to be sched_clock() driven in
essence.

Ingo
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