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Date: Mon, 23 May 2011 09:08:16 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH V5] memcg: add memory.numastat api for numa statistics
Message-Id: <20110523090816.3ab157d4.kamezawa.hiroyu@jp.fujitsu.com>
In-Reply-To: <1305928918-15207-1-git-send-email-yinghan@google.com>
References: <1305928918-15207-1-git-send-email-yinghan@google.com>
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Sender: owner-linux-mm@kvack.org
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To: Ying Han <yinghan@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>, Minchan Kim <minchan.kim@gmail.com>, Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>, Balbir Singh <balbir@linux.vnet.ibm.com>, Tejun Heo <tj@kernel.org>, Pavel Emelyanov <xemul@openvz.org>, Andrew Morton <akpm@linux-foundation.org>, Li Zefan <lizf@cn.fujitsu.com>, Mel Gorman <mel@csn.ul.ie>, Christoph Lameter <cl@linux.com>, Johannes Weiner <hannes@cmpxchg.org>, Rik van Riel <riel@redhat.com>, Hugh Dickins <hughd@google.com>, Michal Hocko <mhocko@suse.cz>, Dave Hansen <dave@linux.vnet.ibm.com>, Zhu Yanhai <zhu.yanhai@gmail.com>, linux-mm@kvack.org

On Fri, 20 May 2011 15:01:58 -0700
Ying Han <yinghan@google.com> wrote:

> The new API exports numa_maps per-memcg basis. This is a piece of useful
> information where it exports per-memcg page distribution across real numa
> nodes.
> 
> One of the usecase is evaluating application performance by combining this
> information w/ the cpu allocation to the application.
> 
> The output of the memory.numastat tries to follow w/ simiar format of numa_maps
> like:
> 
> total=<total pages> N0=<node 0 pages> N1=<node 1 pages> ...
> file=<total file pages> N0=<node 0 pages> N1=<node 1 pages> ...
> anon=<total anon pages> N0=<node 0 pages> N1=<node 1 pages> ...
> unevictable=<total anon pages> N0=<node 0 pages> N1=<node 1 pages> ...
> 

Ah, please update Documentaion please.

Thanks,
-Kame


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