Re: [RFC][PATCH 6/6] sched: consolidate config options
From: Peter Zijlstra
Date: Fri Sep 19 2014 - 19:03:18 EST
On Fri, Sep 19, 2014 at 12:15:45PM -0700, Dave Hansen wrote:
> On 09/18/2014 10:29 AM, Peter Zijlstra wrote:
> >> > +config SCHED_BOOK
> >> > + def_bool y
> >> > + prompt "Book scheduler support"
> >> > + depends on ARCH_ENABLE_SCHED_BOOK
> >> > + select SCHED_MC
> >> > + help
> >> > + Book scheduler support improves the CPU scheduler's decision making
> >> > + when dealing with machines that have several books.
> >> > +
> >> > + Currenltly only used on s390 which has only a single NUMA node.
> >> > + Books are collections of CPUs that are grouped similarly to a NUMA
> >> > + node, but without the same memory properites that NUMA nodes have.
> > Nothing outside of s390 knows about SCHED_BOOK, it doesn't make sense to
> > have that here.
>
> By sticking all of them together, my hope was that folks who were going
> to add a topology level could see all of the existing options in a
> single place.
>
> But, just say the word and I'll yank it out and repost.
Yeah, I think its best to leave it a s390 private afair.
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