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Date: Fri, 22 Apr 2011 13:36:43 +0900
From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH V7 4/9] Add memcg kswapd thread pool
Message-Id: <20110422133643.6a36d838.kamezawa.hiroyu@jp.fujitsu.com>
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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 Thu, 21 Apr 2011 21:24:15 -0700
Ying Han <yinghan@google.com> wrote:

> This patch creates a thread pool for memcg-kswapd. All memcg which needs
> background recalim are linked to a list and memcg-kswapd picks up a memcg
> from the list and run reclaim.
> 
> The concern of using per-memcg-kswapd thread is the system overhead including
> memory and cputime.
> 
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> Signed-off-by: Ying Han <yinghan@google.com>

Thank you for merging. This seems ok to me.

Further development may make this better or change thread pools (to some other),
but I think this is enough good.

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