linux-kernel - Re: [PATCH] meminfo: show /proc/meminfo base on container's memcg

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Date:	Wed, 30 May 2012 18:31:41 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
cc:	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	Gao feng <gaofeng@...fujitsu.com>, hannes@...xchg.org,
	mhocko@...e.cz, bsingharora@...il.com, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, cgroups@...r.kernel.org,
	linux-mm@...ck.org, containers@...ts.linux-foundation.org
Subject: Re: [PATCH] meminfo: show /proc/meminfo base on container's memcg

On Thu, 31 May 2012, Kamezawa Hiroyuki wrote:

> > > My test with sysfs node's meminfo seems to work...
> > > 
> > > [root@...00-1 qqm]# mount --bind /sys/devices/system/node/node0/meminfo
> > > /proc/meminfo
> > > [root@...00-1 qqm]# cat /proc/meminfo
> > > 
> > > Node 0 MemTotal:        8379636 kB
> > 
> > This doesn't seem like a good idea unless the application supports the
> > "Node 0" prefix in /proc/meminfo.
> > 
> Of course, /cgroup/memory/..../memory.meminfo , a new file, will use the same
> format of /proc/meminfo. Above is just an example of bind-mount.
> 

It's not just a memcg issue, it would also be a cpusets issue.
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