From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with ESMTP id 668FC6B0023 for ; Thu, 12 May 2011 04:24:13 -0400 (EDT) Received: from m2.gw.fujitsu.co.jp (unknown [10.0.50.72]) by fgwmail5.fujitsu.co.jp (Postfix) with ESMTP id 42A283EE0BC for ; Thu, 12 May 2011 17:24:10 +0900 (JST) Received: from smail (m2 [127.0.0.1]) by outgoing.m2.gw.fujitsu.co.jp (Postfix) with ESMTP id 2A07B45DD6E for ; Thu, 12 May 2011 17:24:10 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (s2.gw.fujitsu.co.jp [10.0.50.92]) by m2.gw.fujitsu.co.jp (Postfix) with ESMTP id ED45745DE4E for ; Thu, 12 May 2011 17:24:09 +0900 (JST) Received: from s2.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id D9E441DB8043 for ; Thu, 12 May 2011 17:24:09 +0900 (JST) Received: from ml13.s.css.fujitsu.com (ml13.s.css.fujitsu.com [10.240.81.133]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 9C4D01DB802C for ; Thu, 12 May 2011 17:24:09 +0900 (JST) Date: Thu, 12 May 2011 17:17:25 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [RFC][PATCH 0/7] memcg async reclaim Message-Id: <20110512171725.d367980f.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20110512132237.813a7c7f.kamezawa.hiroyu@jp.fujitsu.com> References: <20110510190216.f4eefef7.kamezawa.hiroyu@jp.fujitsu.com> <20110511182844.d128c995.akpm@linux-foundation.org> <20110512103503.717f4a96.kamezawa.hiroyu@jp.fujitsu.com> <20110511205110.354fa05e.akpm@linux-foundation.org> <20110512132237.813a7c7f.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: KAMEZAWA Hiroyuki Cc: Andrew Morton , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Ying Han , Johannes Weiner , Michal Hocko , "balbir@linux.vnet.ibm.com" , "nishimura@mxp.nes.nec.co.jp" On Thu, 12 May 2011 13:22:37 +0900 KAMEZAWA Hiroyuki wrote: > On Wed, 11 May 2011 20:51:10 -0700 > Andrew Morton wrote: > Ah, sorry. above was on KVM. without container. > == > [root@rhel6-test hilow]# time cp ./tmpfile xxx > > real 0m5.197s > user 0m0.006s > sys 0m2.599s > == > Hmm, still slow. I'll use real hardware in the next post. > I'm now testing on a real machine with some fixes and see == without async reclaim == real 0m6.569s user 0m0.006s sys 0m0.976s == with async reclaim == real 0m6.305s user 0m0.007s sys 0m0.907s ...in gneral sys time reduced always but 'real' is in error range ;) yes, no gain. I'll check what codes in vmscan.c or /mm affects memcg and post a required fix in step by step. I think I found some.. 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org