From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail202.messagelabs.com (mail202.messagelabs.com [216.82.254.227]) by kanga.kvack.org (Postfix) with SMTP id E38D46B0092 for ; Fri, 28 Aug 2009 00:35:46 -0400 (EDT) Received: from m4.gw.fujitsu.co.jp ([10.0.50.74]) by fgwmail6.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id n7S4ZkDC018956 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Fri, 28 Aug 2009 13:35:46 +0900 Received: from smail (m4 [127.0.0.1]) by outgoing.m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 7885545DE60 for ; Fri, 28 Aug 2009 13:35:46 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (s4.gw.fujitsu.co.jp [10.0.50.94]) by m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 581E445DE4D for ; Fri, 28 Aug 2009 13:35:46 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id 14D9EE08003 for ; Fri, 28 Aug 2009 13:35:46 +0900 (JST) Received: from m107.s.css.fujitsu.com (m107.s.css.fujitsu.com [10.249.87.107]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id B676A1DB8037 for ; Fri, 28 Aug 2009 13:35:45 +0900 (JST) Date: Fri, 28 Aug 2009 13:33:55 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [RFC][PATCH 0/5] memcg: reduce lock conetion Message-Id: <20090828133355.6b935757.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20090828042836.GD4889@balbir.in.ibm.com> References: <20090828132015.10a42e40.kamezawa.hiroyu@jp.fujitsu.com> <20090828042836.GD4889@balbir.in.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: balbir@linux.vnet.ibm.com Cc: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "nishimura@mxp.nes.nec.co.jp" List-ID: On Fri, 28 Aug 2009 09:58:36 +0530 Balbir Singh wrote: > * KAMEZAWA Hiroyuki [2009-08-28 13:20:15]: > > > Hi, > > > > Recently, memcg's res_counter->lock contention on big server is reported and > > Balbir wrote a workaround for root memcg. > > It's good but we need some fix for children, too. > > > > This set is for reducing lock conetion of memcg's children cgroup based on mmotm-Aug27. > > > > I'm sorry I have only 8cpu machine and can't reproduce very troublesome lock conention. > > Here is lock_stat of make -j 12 on my 8cpu box, befre-after this patch series. > > > > Kamezawa-San, > > I've been unable to get mmotm to boot (24th August, I'll try the 27th > Aug and debug). Once that is done, I'll test on a large machine. > yep, take it easy. I'm now very active in this weekend, anyway. BTW, have you tried this ? http://marc.info/?l=linux-kernel&m=125136796932491&w=2 Thanks, -Kame -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org