linux-kernel - Re: [RFC] Block IO Controller V1

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Message-ID: <x49k4y6rsz5.fsf@segfault.boston.devel.redhat.com>
Date:	Wed, 04 Nov 2009 14:27:10 -0500
From:	Jeff Moyer <jmoyer@...hat.com>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	linux-kernel@...r.kernel.org, jens.axboe@...cle.com,
	nauman@...gle.com, dpshah@...gle.com, lizf@...fujitsu.com,
	ryov@...inux.co.jp, fernando@....ntt.co.jp, s-uchida@...jp.nec.com,
	taka@...inux.co.jp, guijianfeng@...fujitsu.com,
	balbir@...ux.vnet.ibm.com, righi.andrea@...il.com,
	m-ikeda@...jp.nec.com, akpm@...ux-foundation.org, riel@...hat.com,
	kamezawa.hiroyu@...fujitsu.com
Subject: Re: [RFC] Block IO Controller V1

Vivek Goyal <vgoyal@...hat.com> writes:

> On Wed, Nov 04, 2009 at 02:12:19PM -0500, Jeff Moyer wrote:
>> Vivek Goyal <vgoyal@...hat.com> writes:
>> 
>> > Hi All,
>> >
>> > This is V1 of the Block IO controller patches on top of 2.6.32-rc5.
>> >
>> > A consolidated patch can be found here:
>> >
>> > http://people.redhat.com/vgoyal/io-controller/blkio-controller/blkio-controller-v1.patch
>> 
>> Overall it looks good.  Vivek, could you please run some benchmarks
>> against a vanilla kernel and then with your patch applied and cgroups
>> compiled in but not configured?
>> 
>
> Sure I can. Do you have something specific in mind?

I don't, actually.  iozone comes to mind as a simple test to setup and
run.  Or you could run one or more of the fio sample job files.  Really,
I just want to see if we're taking a huge performance hit so we can fix
that up before it's merged.

Thanks!
Jeff
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