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Date: Sun, 16 Dec 2012 18:53:42 -0800 (PST)
From: Hugh Dickins <hughd@google.com>
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To: Linus Torvalds <torvalds@linux-foundation.org>
cc: Mel Gorman <mgorman@suse.de>, Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Andrea Arcangeli <aarcange@redhat.com>, Ingo Molnar <mingo@kernel.org>,
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        Hugh Dickins <hughd@google.com>, Thomas Gleixner <tglx@linutronix.de>,
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        David Rientjes <rientjes@google.com>,
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        Alex Shi <lkml.alex@gmail.com>,
        Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
        Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: [GIT PULL] Automatic NUMA Balancing V11
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On Sun, 16 Dec 2012, Linus Torvalds wrote:
> On Wed, Dec 12, 2012 at 2:03 AM, Mel Gorman <mgorman@suse.de> wrote:
> > This is a pull request for "Automatic NUMA Balancing V11". The list
> 
> Ok, guys, I've pulled this and pushed out. There were some conflicts
> with both the VM changes and with the scheduler tree, but they were
> pretty small and looked simple, so I fixed them up and hope they all
> work.

Great! Thank you. Rejoicing on all sides.
One small merge fixup follows under new subject.

Hugh

> 
> Has anybody tested the impact on single-node systems? If distros
> enable this by default (and it does have 'default y', which is a big
> no-no for new features - I undid that part) then there will be tons of
> people running this without actually having multiple sockets. Does it
> gracefully avoid pointless overheads for this case?
> 
> Anyway, hopefully we'll have a more real numa balancing for 3.9, and
> this is still considered a reasonable base for that work.
> 
>                   Linus