From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with SMTP id 2FABC60021B for ; Fri, 4 Dec 2009 02:03:42 -0500 (EST) Received: from m6.gw.fujitsu.co.jp ([10.0.50.76]) by fgwmail7.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id nB473bwq029713 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Fri, 4 Dec 2009 16:03:37 +0900 Received: from smail (m6 [127.0.0.1]) by outgoing.m6.gw.fujitsu.co.jp (Postfix) with ESMTP id F1EA145DE4F for ; Fri, 4 Dec 2009 16:03:36 +0900 (JST) Received: from s6.gw.fujitsu.co.jp (s6.gw.fujitsu.co.jp [10.0.50.96]) by m6.gw.fujitsu.co.jp (Postfix) with ESMTP id D1AEE45DE4E for ; Fri, 4 Dec 2009 16:03:36 +0900 (JST) Received: from s6.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s6.gw.fujitsu.co.jp (Postfix) with ESMTP id BEF161DB8037 for ; Fri, 4 Dec 2009 16:03:36 +0900 (JST) Received: from ml13.s.css.fujitsu.com (ml13.s.css.fujitsu.com [10.249.87.103]) by s6.gw.fujitsu.co.jp (Postfix) with ESMTP id 75C571DB8038 for ; Fri, 4 Dec 2009 16:03:36 +0900 (JST) Date: Fri, 4 Dec 2009 16:00:42 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH -mmotm 0/7] memcg: move charge at task migration (04/Dec) Message-Id: <20091204160042.3e5fd83d.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20091204155317.2d570a55.kamezawa.hiroyu@jp.fujitsu.com> References: <20091204144609.b61cc8c4.nishimura@mxp.nes.nec.co.jp> <20091204155317.2d570a55.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 To: KAMEZAWA Hiroyuki Cc: Daisuke Nishimura , Andrew Morton , Balbir Singh , Li Zefan , Paul Menage , linux-mm List-ID: On Fri, 4 Dec 2009 15:53:17 +0900 KAMEZAWA Hiroyuki wrote: > On Fri, 4 Dec 2009 14:46:09 +0900 > Daisuke Nishimura wrote: > > In this version: > > | 252M | 512M | 1G > > -----+--------+--------+-------- > > (1) | 0.15 | 0.30 | 0.60 > > -----+--------+--------+-------- > > (2) | 0.15 | 0.30 | 0.60 > > -----+--------+--------+-------- > > (3) | 0.22 | 0.44 | 0.89 > > > Nice ! > Ah. could you clarify... 1. How is fork()/exit() affected by this move ? 2. How long cpuset's migration-at-task-move requires ? I guess much longer than this. 3. If need to reclaim memory for moving tasks, can this be longer ? If so, we may need some trick to release cgroup_mutex in task moving. 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