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From: Andi Kleen <andi@firstfloor.org>
Subject: Re: [PATCH 00/33] AutoNUMA27
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Date: Fri, 05 Oct 2012 17:11:33 -0700
In-Reply-To: <1349481433.17632.62.camel@schen9-DESK> (Tim Chen's message of
	"Fri, 05 Oct 2012 16:57:13 -0700")
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To: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>, 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@linux.intel.com, Sh@linux.intel.com

Tim Chen <tim.c.chen@linux.intel.com> writes:
>> 
>
> I remembered that 3 months ago when Alex tested the numa/sched patches
> there were 20% regression on SpecJbb2005 due to the numa balancer.

20% on anything sounds like a show stopper to me.

-Andi

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

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