Re: [PATCH] virtual sched_clock() for s390

[Ingo Molnar]

* Jan Glauber <jang@xxxxxxxxxxxxxxxxxx> 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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