linux-kernel - Re: [RFC] [PATCH -mm] cgroup: limit the amount of dirty file pages

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Date:	Tue, 09 Sep 2008 10:49:44 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	righi.andrea@...il.com
Cc:	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Paul Menage <menage@...gle.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	David Radford <dradford@...ehost.com>,
	Marco Innocenti <m.innocenti@...eca.it>,
	Fernando Luis Vázquez Cao 
	<fernando@....ntt.co.jp>, containers@...ts.linux-foundation.org,
	LKML <linux-kernel@...r.kernel.org>,
	Carl Henrik Lunde <chlunde@...g.uio.no>, linux-mm@...ck.org,
	Divyesh Shah <dpshah@...gle.com>,
	Matt Heaton <matt@...ehost.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Naveen Gupta <ngupta@...gle.com>
Subject: Re: [RFC] [PATCH -mm] cgroup: limit the amount of dirty file pages

On Tue, 2008-09-09 at 17:38 +0200, Andrea Righi wrote:
> 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).

So, this functions similarly to our global dirty ratio?  Is it just
intended to keep a cgroup from wedging itself too hard with too many
dirty pages, just like the global ratio?

-- Dave

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