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From: Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH 00/33] AutoNUMA27
References: <1349308275-2174-1-git-send-email-aarcange@redhat.com>
	<20121004113943.be7f92a0.akpm@linux-foundation.org>
Date: Fri, 05 Oct 2012 16:14:44 -0700
In-Reply-To: <20121004113943.be7f92a0.akpm@linux-foundation.org> (Andrew
	Morton's message of "Thu, 4 Oct 2012 11:39:43 -0700")
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To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Linus Torvalds <torvalds@linux-foundation.org>, Peter Zijlstra <pzijlstr@redhat.com>, Ingo Molnar <mingo@elte.hu>, Mel Gorman <mel@csn.ul.ie>, Hugh Dickins <hughd@google.com>, Rik van Riel <riel@redhat.com>, Johannes Weiner <hannes@cmpxchg.org>, Hillf Danton <dhillf@gmail.com>, Andrew Jones <drjones@redhat.com>, Dan Smith <danms@us.ibm.com>, Thomas Gleixner <tglx@linutronix.de>, Paul Turner <pjt@google.com>, Christoph Lameter <cl@linux.com>, Suresh Siddha <suresh.b.siddha@intel.com>, Mike Galbraith <efault@gmx.de>, "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Lai Jiangshan <laijs@cn.fujitsu.com>, Bharata B Rao <bharata.rao@gmail.com>, Lee Schermerhorn <Lee.Schermerhorn@hp.com>, Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>, Alex Shi <alex.shi@intel.com>, Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com>, Konrad@linux.intel.com

Andrew Morton <akpm@linux-foundation.org> writes:

> On Thu,  4 Oct 2012 01:50:42 +0200
> Andrea Arcangeli <aarcange@redhat.com> wrote:
>
>> This is a new AutoNUMA27 release for Linux v3.6.
>
> Peter's numa/sched patches have been in -next for a week. 

Did they pass review? I have some doubts.

The last time I looked it also broke numactl.

> Guys, what's the plan here?

Since they are both performance features their ultimate benefit
is how much faster they make things (and how seldom they make things
slower)

IMHO needs a performance shot-out. Run both on the same 10 workloads
and see who wins. Just a lot of of work. Any volunteers?

For a change like this I think less regression is actually more
important than the highest peak numbers.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only

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