linux-kernel - Re: [RFC] IO scheduler based IO controller V6

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Date:	Wed, 8 Jul 2009 09:41:14 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Balbir Singh <balbir@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org,
	containers@...ts.linux-foundation.org, dm-devel@...hat.com,
	jens.axboe@...cle.com, nauman@...gle.com, dpshah@...gle.com,
	lizf@...fujitsu.com, mikew@...gle.com, fchecconi@...il.com,
	paolo.valente@...more.it, ryov@...inux.co.jp,
	fernando@....ntt.co.jp, s-uchida@...jp.nec.com, taka@...inux.co.jp,
	guijianfeng@...fujitsu.com, jmoyer@...hat.com,
	dhaval@...ux.vnet.ibm.com, righi.andrea@...il.com,
	m-ikeda@...jp.nec.com, jbaron@...hat.com, agk@...hat.com,
	snitzer@...hat.com, akpm@...ux-foundation.org, peterz@...radead.org
Subject: Re: [RFC] IO scheduler based IO controller V6

On Wed, Jul 08, 2009 at 09:26:21AM +0530, Balbir Singh wrote:
> * Vivek Goyal <vgoyal@...hat.com> [2009-07-02 16:01:32]:
> 
> > 
> > Hi All,
> > 
> > Here is the V6 of the IO controller patches generated on top of 2.6.31-rc1.
> > 
> > Previous versions of the patches was posted here.
> > 
> > (V1) http://lkml.org/lkml/2009/3/11/486
> > (V2) http://lkml.org/lkml/2009/5/5/275
> > (V3) http://lkml.org/lkml/2009/5/26/472
> > (V4) http://lkml.org/lkml/2009/6/8/580
> > (V5) http://lkml.org/lkml/2009/6/19/279
> > 
> > This patchset is still work in progress but I want to keep on getting the
> > snapshot of my tree out at regular intervals to get the feedback hence V6.
> >
> 
> Hi, Vivek,
> 
> I was able to compile and boot a 2.6.31-rc1 kernel with this patchset.
> I have a request could you fold up all patches and make one
> consolidated patch available somewhere (makes it easier to test), may
> be a git tree?
> 

Thanks for trying it out balbir. Ok, for ease of patching and testing, I 
will also maintain a consolidated patch. For V6 you can download the patch
from here.

http://people.redhat.com/~vgoyal/io-controller/io-scheduler-based-io-controller-v6.patch

> I did some quick tests with some io benchmarks and found in a simple
> scenario that the scheduler worked as expected, except that it took
> very long. I'll investigate further and revert back.

Thanks. I will wait for details.

Vivek
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