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From: Andi Kleen <andi@firstfloor.org>
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
Subject: Re: [PATCH 00/33] AutoNUMA27
Date: Fri, 05 Oct 2012 17:11:33 -0700	[thread overview]
Message-ID: <m2zk40v4qy.fsf@firstfloor.org> (raw)
In-Reply-To: <1349481433.17632.62.camel@schen9-DESK> (Tim Chen's message of "Fri, 05 Oct 2012 16:57:13 -0700")

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

  reply	other threads:[~2012-10-06  0:11 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1349308275-2174-1-git-send-email-aarcange@redhat.com>
     [not found] ` <20121004113943.be7f92a0.akpm@linux-foundation.org>
2012-10-05 23:14   ` [PATCH 00/33] AutoNUMA27 Andi Kleen
2012-10-05 23:57     ` Tim Chen
2012-10-06  0:11       ` Andi Kleen [this message]
2012-10-08 13:44         ` Don Morris
2012-10-08 20:34     ` Rik van Riel
     [not found] ` <20121011101930.GM3317@csn.ul.ie>
2012-10-11 14:56   ` Andrea Arcangeli
2012-10-11 15:35     ` Mel Gorman
2012-10-12  0:41       ` Andrea Arcangeli
2012-10-12 14:54       ` Mel Gorman
     [not found] ` <1349308275-2174-2-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121011105036.GN3317@csn.ul.ie>
2012-10-11 16:07     ` [PATCH 01/33] autonuma: add Documentation/vm/autonuma.txt Andrea Arcangeli
2012-10-11 19:37       ` Mel Gorman
     [not found] ` <1349308275-2174-5-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121011110137.GQ3317@csn.ul.ie>
2012-10-11 16:43     ` [PATCH 04/33] autonuma: define _PAGE_NUMA Andrea Arcangeli
2012-10-11 19:48       ` Mel Gorman
     [not found] ` <1349308275-2174-6-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121011111545.GR3317@csn.ul.ie>
2012-10-11 16:58     ` [PATCH 05/33] autonuma: pte_numa() and pmd_numa() Andrea Arcangeli
2012-10-11 19:54       ` Mel Gorman
     [not found] ` <1349308275-2174-7-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121011122255.GS3317@csn.ul.ie>
2012-10-11 17:05     ` [PATCH 06/33] autonuma: teach gup_fast about pmd_numa Andrea Arcangeli
2012-10-11 20:01       ` Mel Gorman
     [not found] ` <1349308275-2174-8-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121011122827.GT3317@csn.ul.ie>
2012-10-11 17:15     ` [PATCH 07/33] autonuma: mm_autonuma and task_autonuma data structures Andrea Arcangeli
2012-10-11 20:06       ` Mel Gorman
     [not found]     ` <5076E4B2.2040301@redhat.com>
     [not found]       ` <0000013a525a8739-2b4049fa-1cb3-4b8f-b3a7-1fa77b181590-000000@email.amazonses.com>
2012-10-12  0:52         ` Andrea Arcangeli
     [not found] ` <1349308275-2174-9-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121011134643.GU3317@csn.ul.ie>
2012-10-11 17:34     ` [PATCH 08/33] autonuma: define the autonuma flags Andrea Arcangeli
2012-10-11 20:17       ` Mel Gorman
     [not found] ` <1349308275-2174-11-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121011145805.GW3317@csn.ul.ie>
2012-10-12  0:25     ` [PATCH 10/33] autonuma: CPU follows memory algorithm Andrea Arcangeli
2012-10-12  8:29       ` Mel Gorman
     [not found] ` <20121011213432.GQ3317@csn.ul.ie>
2012-10-12  1:45   ` [PATCH 00/33] AutoNUMA27 Andrea Arcangeli
2012-10-12  8:46     ` Mel Gorman
     [not found] ` <1349308275-2174-16-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121011155302.GA3317@csn.ul.ie>
     [not found]     ` <50770314.7060800@redhat.com>
     [not found]       ` <20121011175953.GT1818@redhat.com>
2012-10-12 14:03         ` [PATCH 15/33] autonuma: alloc/free/init task_autonuma Rik van Riel
2012-10-13 18:40 ` [PATCH 00/33] AutoNUMA27 Srikar Dronamraju
2012-10-14  4:57   ` Andrea Arcangeli
2012-10-15  8:16     ` Srikar Dronamraju
2012-10-23 16:32     ` Srikar Dronamraju
     [not found] ` <1349308275-2174-20-git-send-email-aarcange@redhat.com>
     [not found]   ` <20121013180618.GC31442@linux.vnet.ibm.com>
2012-10-15  8:24     ` [PATCH 19/33] autonuma: memory follows CPU algorithm and task/mm_autonuma stats collection Srikar Dronamraju
2012-10-15  9:20       ` Mel Gorman
2012-10-15 10:00         ` Srikar Dronamraju

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