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Date:	Fri, 19 Sep 2014 12:15:45 -0700
From:	Dave Hansen <>
To:	Peter Zijlstra <>
Subject: Re: [RFC][PATCH 6/6] sched: consolidate config options

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.
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