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Message-ID: <541C80E1.9040601@sr71.net>
Date: Fri, 19 Sep 2014 12:15:45 -0700
From: Dave Hansen <dave@...1.net>
To: Peter Zijlstra <peterz@...radead.org>
CC: mingo@...nel.org, hpa@...ux.intel.com, brice.goglin@...il.com,
bp@...en8.de, linux-kernel@...r.kernel.org,
dave.hansen@...ux.intel.com
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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