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 C21D75F0001 for ; Wed, 8 Apr 2009 03:35:37 -0400 (EDT) Received: from m3.gw.fujitsu.co.jp ([10.0.50.73]) by fgwmail7.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id n387a9x7000616 for (envelope-from kamezawa.hiroyu@jp.fujitsu.com); Wed, 8 Apr 2009 16:36:09 +0900 Received: from smail (m3 [127.0.0.1]) by outgoing.m3.gw.fujitsu.co.jp (Postfix) with ESMTP id 1D11F45DD7D for ; Wed, 8 Apr 2009 16:36:09 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (s3.gw.fujitsu.co.jp [10.0.50.93]) by m3.gw.fujitsu.co.jp (Postfix) with ESMTP id F12BA45DD7B for ; Wed, 8 Apr 2009 16:36:08 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id D8AE71DB8040 for ; Wed, 8 Apr 2009 16:36:08 +0900 (JST) Received: from m105.s.css.fujitsu.com (m105.s.css.fujitsu.com [10.249.87.105]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id 82A911DB8042 for ; Wed, 8 Apr 2009 16:36:08 +0900 (JST) Date: Wed, 8 Apr 2009 16:34:40 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [RFI] Shared accounting for memory resource controller Message-Id: <20090408163440.4442dc3c.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <344eb09a0904080031y4406c001n584725b87024755@mail.gmail.com> References: <20090407063722.GQ7082@balbir.in.ibm.com> <20090407163331.8e577170.kamezawa.hiroyu@jp.fujitsu.com> <20090407080355.GS7082@balbir.in.ibm.com> <20090407172419.a5f318b9.kamezawa.hiroyu@jp.fujitsu.com> <20090408052904.GY7082@balbir.in.ibm.com> <20090408151529.fd6626c2.kamezawa.hiroyu@jp.fujitsu.com> <20090408070401.GC7082@balbir.in.ibm.com> <20090408160733.4813cb8d.kamezawa.hiroyu@jp.fujitsu.com> <20090408071115.GD7082@balbir.in.ibm.com> <20090408161824.26f47077.kamezawa.hiroyu@jp.fujitsu.com> <344eb09a0904080031y4406c001n584725b87024755@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org To: Bharata B Rao Cc: balbir@linux.vnet.ibm.com, "linux-mm@kvack.org" , Andrew Morton , "lizf@cn.fujitsu.com" , Rik van Riel , Bharata B Rao , Dhaval Giani , KOSAKI Motohiro , "linux-kernel@vger.kernel.org" List-ID: On Wed, 8 Apr 2009 13:01:15 +0530 Bharata B Rao wrote: > On Wed, Apr 8, 2009 at 12:48 PM, KAMEZAWA Hiroyuki > wrote: > > > > On Wed, 8 Apr 2009 12:41:15 +0530 > > Balbir Singh wrote: > > > 3. Using the above, we can then try to (using an algorithm you > > > proposed), try to do some work for figuring out the shared percentage. > > > > > This is the point. At last. Why "# of shared pages" is important ? > > > > I wonder it's better to add new stat file as memory.cacheinfo which helps > > following kind of commands. > > > > A #cacheinfo /cgroups/memory/group01/ > > A A A /usr/lib/libc.so.1 A A 30pages > > A A A /var/log/messages A A A 1 pages > > A A A /tmp/xxxxxx A A A A A A 20 pages > > Can I suggest that we don't add new files for additional stats and try > as far as possible to include them in .stat file. Please > note that we have APIs in libcgroup library which can return > statistics from controllers associated with a cgroup and these APIs > assume that stats are part of .stat file. > Hmm ? Is there generic assumption as all cgroup has "stat" file ? And libcgroup cause bug if the new entry is added to stat file ? (IOW, libcgroup can't ignore new entry added ?) 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