From mboxrd@z Thu Jan  1 00:00:00 1970
From: kamezawa.hiroyu@jp.fujitsu.com
Message-ID: <11118085.1220977593430.kamezawa.hiroyu@jp.fujitsu.com>
Date: Wed, 10 Sep 2008 01:26:33 +0900 (JST)
Subject: Re: [RFC] [PATCH -mm] cgroup: limit the amount of dirty file pages
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Cc: Balbir Singh <balbir@linux.vnet.ibm.com>, Paul Menage <menage@google.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Dave Hansen <dave@linux.vnet.ibm.com>, Carl Henrik Lunde <chlunde@ping.uio.no>, Divyesh Shah <dpshah@google.com>, Naveen Gupta <ngupta@google.com>, Fernando Luis V?zquez Cao <fernando@oss.ntt.co.jp>, Andrew Morton <akpm@linux-foundation.org>, Hirokazu Takahashi <taka@valinux.co.jp>, Marco Innocenti <m.innocenti@cineca.it>, Satoshi UCHIDA <s-uchida@ap.jp.nec.com>, Ryo Tsuruta <ryov@valinux.co.jp>, Vivek Goyal <vgoyal@redhat.com>, Matt Heaton <matt@bluehost.com>, David Radford <dradford@bluehost.com>, containers@lists.linux-foundation.org, LKML <linux-kernel@vger.kernel.org>, linux-mm@kvack.org
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----- Original Message -----
>This is a totally experimental patch against 2.6.27-rc5-mm1.
>
>It allows to control how much dirty file pages a cgroup can have at any
>given time. This feature is supposed to be strictly connected to a
>generic cgroup IO controller (see below).
>
>Interface: a new entry "filedirty" is added to the file memory.stat,
>reporting the number of dirty file pages (in pages), and a new file
>memory.file_dirty_limit_in_pages is added in the cgroup filesystem to
>show/set the current limit.
>
Before staring patch review, why not dirty_ratio per memcg ?
Is there difficult implementation issue ?

Thanks,
-Kame

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