linux-kernel - Re: [patch 0/4] [RFC] Another proportional weight IO controller

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Message-ID: <491321ED.5010103@redhat.com>
Date:	Thu, 06 Nov 2008 11:57:17 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Vivek Goyal <vgoyal@...hat.com>, linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org,
	virtualization@...ts.linux-foundation.org, jens.axboe@...cle.com,
	Hirokazu Takahashi <taka@...inux.co.jp>,
	Ryo Tsuruta <ryov@...inux.co.jp>,
	Andrea Righi <righi.andrea@...il.com>,
	Satoshi UCHIDA <s-uchida@...jp.nec.com>,
	fernando@....ntt.co.jp, balbir@...ux.vnet.ibm.com,
	Andrew Morton <akpm@...ux-foundation.org>, menage@...gle.com,
	ngupta@...gle.com, Jeff Moyer <jmoyer@...hat.com>
Subject: Re: [patch 0/4] [RFC] Another proportional weight IO controller

Peter Zijlstra wrote:

> The only real issue I can see is with linear volumes, but those are
> stupid anyway - non of the gains but all the risks.

Linear volumes may well be the most common ones.

People start out with the filesystems at a certain size,
increasing onto a second (new) disk later, when more space
is required.

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