From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx155.postini.com [74.125.245.155]) by kanga.kvack.org (Postfix) with SMTP id 6D3E96B005D for ; Thu, 31 May 2012 04:54:59 -0400 (EDT) Message-ID: <4FC73203.2070009@cn.fujitsu.com> Date: Thu, 31 May 2012 16:55:31 +0800 From: Gao feng MIME-Version: 1.0 Subject: Re: [PATCH] meminfo: show /proc/meminfo base on container's memcg References: <1338260214-21919-1-git-send-email-gaofeng@cn.fujitsu.com> <4FC6B68C.2070703@jp.fujitsu.com> <4FC6BC3E.5010807@jp.fujitsu.com> <4FC6C111.2060108@jp.fujitsu.com> <4FC6D881.4090706@jp.fujitsu.com> <4FC70355.70805@jp.fujitsu.com> <4FC70E5E.1010003@gmail.com> <4FC711A5.4090003@gmail.com> <4FC720EE.3010307@gmail.com> <4FC724B1.70508@cn.fujitsu.com> <4FC72CA4.6080708@parallels.com> In-Reply-To: <4FC72CA4.6080708@parallels.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: owner-linux-mm@kvack.org List-ID: To: Glauber Costa Cc: KOSAKI Motohiro , David Rientjes , Kamezawa Hiroyuki , hannes@cmpxchg.org, mhocko@suse.cz, bsingharora@gmail.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, containers@lists.linux-foundation.org =E4=BA=8E 2012=E5=B9=B405=E6=9C=8831=E6=97=A5 16:32, Glauber Costa =E5=86= =99=E9=81=93: > On 05/31/2012 11:58 AM, Gao feng wrote: >>> > It's one of a option. But, I seriously doubt fuse can make simpler t= han kamezawa-san's >>> > idea. But yeah, I might NACK kamezawa-san's one if he will post ugly= patch. >>> > >> It seams I should do some homework to make the implement beautifully. >> >> I think kamezawa-san's idea is more simpler. >> thanks for your advice. >> >=20 > One think to keep in mind: A file in memcg does not need to follow the sa= me format of /proc/meminfo so we can bind mount. We should be able to recon= struct that in userspace based on information > available from the kernel. You can even collect that from multiple locati= ons, and *then* you bind mount. >=20 > It helps to keep the churn out of the kernel, and in case of meminfo, you= might need no extra kernel patches at all. And in the case of other files = like /proc/stat, the relevant information comes from > more than one cgroup anyway, so there is not too much way around it. I got it,thank you very much,indeed we need no extra kernel patch at all. Maybe we should do this work in lxc or libvirt. thanks Glauber! = -- 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