linux-kernel - Re: [PATCH 00/33] AutoNUMA27

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Message-ID: <m2zk40v4qy.fsf@firstfloor.org>
Date:	Fri, 05 Oct 2012 17:11:33 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Tim Chen <tim.c.chen@...ux.intel.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andrea Arcangeli <aarcange@...hat.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <pzijlstr@...hat.com>,
	Ingo Molnar <mingo@...e.hu>, Mel Gorman <mel@....ul.ie>,
	Hugh Dickins <hughd@...gle.com>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Hillf Danton <dhillf@...il.com>,
	Andrew Jones <drjones@...hat.com>,
	Dan Smith <danms@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Paul Turner <pjt@...gle.com>, Christoph Lameter <cl@...ux.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Mike Galbraith <efault@....de>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	Bharata B Rao <bharata.rao@...il.com>,
	Lee Schermerhorn <Lee.Schermerhorn@...com>,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	Alex@...ux.intel.com, Sh@...ux.intel.com
Subject: Re: [PATCH 00/33] AutoNUMA27

Tim Chen <tim.c.chen@...ux.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@...ux.intel.com -- Speaking for myself only
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