Re: [ANNOUNCE][RFC] PlugSched-6.3.1 for 2.6.16-rc5

[Al Boldi <a1426z@gawab.com>]

Peter Williams wrote:
> Con Kolivas wrote:
> >>>> Al Boldi wrote:
> >>>>> Also, different schedulers per cpu could be rather useful.
> >>>>
> >>>> I think that would be dangerous.  However, different schedulers per
> >>>> cpuset might make sense but it involve a fair bit of work.
> >>>
> >>> I'm curious. How do you think different schedulers per cpu would be
> >>> useful?
> >>
> >> I don't but I think they MIGHT make sense for cpusets e.g. one set with
> >> a scheduler targeted at interactive tasks and another targeted at
> >> server tasks.  NB the emphasis on might.

Exactly.

> > I am curious as to Al's answer since he asked for the feature.

Can you imagine how neat it would be to set timeslice per cpuset/workload?

> > It would be
> > easy for me to modify the staircase cpu scheduler to allow the
> > interactive and compute modes be set on a per-cpu basis if that was
> > desired.  For that to be helpful of course you'd have to manually set
> > affinity for the tasks or logins you wanted to run on each cpu(s).

Your staircase scheduler is great, and adding this feature would make it 
unique.

Thanks!

--
Al