linux-kernel - RE: [PATCH][RFC][12+2][v3] A expanded CFQ scheduler for cgroups

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Message-ID: <000001c944a8$2f3867b0$8da93710$@jp.nec.com>
Date:	Wed, 12 Nov 2008 18:22:29 +0900
From:	"Satoshi UCHIDA" <s-uchida@...jp.nec.com>
To:	"'Peter Zijlstra'" <peterz@...radead.org>
Cc:	<linux-kernel@...r.kernel.org>,
	<containers@...ts.linux-foundation.org>,
	<virtualization@...ts.linux-foundation.org>,
	<jens.axboe@...cle.com>, "'Ryo Tsuruta'" <ryov@...inux.co.jp>,
	"'Andrea Righi'" <righi.andrea@...il.com>, <ngupta@...gle.com>,
	<fernando@....ntt.co.jp>, <vtaras@...nvz.org>,
	"'Hirokazu Takahashi'" <taka@...inux.co.jp>,
	<balbir@...ux.vnet.ibm.com>,
	"'Andrew Morton'" <akpm@...ux-foundation.org>, <menage@...gle.com>,
	"'SUGAWARA Tomoyoshi'" <tom-sugawara@...jp.nec.com>,
	<paolo.valente@...more.it>,
	"'Fabio Checconi'" <fabio@...dalf.sssup.it>
Subject: RE: [PATCH][RFC][12+2][v3] A expanded CFQ scheduler for cgroups

Hi, Peter.

> Just wondering,.. have you lot looked at the recently posted BFQ
> patches?
> 
> BFQ looks like a very promising elevator, its has tighter bounds than
> CFQ and already does the cgroup thing.


This patchset is improved our previous scheduler(sent 04/01/2008) and resolves some problems.

And, we scheduler can control at the two layers.
Namely, it can control I/O among groups and I/O among tasks within a group.

I always check in containers ML mainly.
So, I found I/O control patches in it ML, dm-iobnd, io-throttle, Naveen's Anticipatory I/O scheduler,
Vasily's CFQ scheduler and Vivek's Another IO controller.
And today I know the BFQ scheduler, so I'm not looked at the BFQ yet.
Now, I'm looking its patch.

Thanks, comments.


Satoshi UCHIDA


> -----Original Message-----
> From: Peter Zijlstra [mailto:peterz@...radead.org]
> Sent: Wednesday, November 12, 2008 5:58 PM
> To: Satoshi UCHIDA
> Cc: linux-kernel@...r.kernel.org;
> containers@...ts.linux-foundation.org;
> virtualization@...ts.linux-foundation.org; jens.axboe@...cle.com; 'Ryo
> Tsuruta'; 'Andrea Righi'; ngupta@...gle.com; fernando@....ntt.co.jp;
> vtaras@...nvz.org; 'Hirokazu Takahashi'; balbir@...ux.vnet.ibm.com;
> 'Andrew Morton'; menage@...gle.com; SUGAWARA Tomoyoshi;
> paolo.valente@...more.it; Fabio Checconi
> Subject: Re: [PATCH][RFC][12+2][v3] A expanded CFQ scheduler for cgroups
> 
> Hi,
> 
> Just wondering,.. have you lot looked at the recently posted BFQ
> patches?
> 
> BFQ looks like a very promising elevator, its has tighter bounds than
> CFQ and already does the cgroup thing.
> 


> -----Original Message-----
> From: Peter Zijlstra [mailto:peterz@...radead.org]
> Sent: Wednesday, November 12, 2008 5:58 PM
> To: Satoshi UCHIDA
> Cc: linux-kernel@...r.kernel.org;
> containers@...ts.linux-foundation.org;
> virtualization@...ts.linux-foundation.org; jens.axboe@...cle.com; 'Ryo
> Tsuruta'; 'Andrea Righi'; ngupta@...gle.com; fernando@....ntt.co.jp;
> vtaras@...nvz.org; 'Hirokazu Takahashi'; balbir@...ux.vnet.ibm.com;
> 'Andrew Morton'; menage@...gle.com; SUGAWARA Tomoyoshi;
> paolo.valente@...more.it; Fabio Checconi
> Subject: Re: [PATCH][RFC][12+2][v3] A expanded CFQ scheduler for cgroups
> 
> Hi,
> 
> Just wondering,.. have you lot looked at the recently posted BFQ
> patches?
> 
> BFQ looks like a very promising elevator, its has tighter bounds than
> CFQ and already does the cgroup thing.
> 


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