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

[Peter Williams]

Con Kolivas wrote:
> On Tuesday 04 April 2006 09:04, Peter Williams wrote:
> > Al Boldi wrote:
>
> > > Is there a module to autotune these values according to cpu/mem/ctxt
> > > performance?
>
> I think you're thinking of Jake's genetic algorithms (separate patch). They 
> tune the zaphod scheduler but bear in mind the limitation of such an 
> algorithm is they can only tune for one workload which means that if you have 
> two workloads running concurrently with different requirements, the other 
> will suffer.
>
> > > Also, different schedulers per cpu could be rather useful.
> > > Peter Williams wrote:
> > 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.

Peter
--
Peter Williams                                   pwil3058@xxxxxxxxxxxxxx

"Learning, n. The kind of ignorance distinguishing the studious."
 -- Ambrose Bierce
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/