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

From: Satoshi UCHIDA
Date: Wed Nov 12 2008 - 04:23:13 EST


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@xxxxxxxxxxxxx]
> Sent: Wednesday, November 12, 2008 5:58 PM
> To: Satoshi UCHIDA
> Cc: linux-kernel@xxxxxxxxxxxxxxx;
> containers@xxxxxxxxxxxxxxxxxxxxxxxxxx;
> virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx; jens.axboe@xxxxxxxxxx; 'Ryo
> Tsuruta'; 'Andrea Righi'; ngupta@xxxxxxxxxx; fernando@xxxxxxxxxxxxx;
> vtaras@xxxxxxxxxx; 'Hirokazu Takahashi'; balbir@xxxxxxxxxxxxxxxxxx;
> 'Andrew Morton'; menage@xxxxxxxxxx; SUGAWARA Tomoyoshi;
> paolo.valente@xxxxxxxxxx; 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@xxxxxxxxxxxxx]
> Sent: Wednesday, November 12, 2008 5:58 PM
> To: Satoshi UCHIDA
> Cc: linux-kernel@xxxxxxxxxxxxxxx;
> containers@xxxxxxxxxxxxxxxxxxxxxxxxxx;
> virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx; jens.axboe@xxxxxxxxxx; 'Ryo
> Tsuruta'; 'Andrea Righi'; ngupta@xxxxxxxxxx; fernando@xxxxxxxxxxxxx;
> vtaras@xxxxxxxxxx; 'Hirokazu Takahashi'; balbir@xxxxxxxxxxxxxxxxxx;
> 'Andrew Morton'; menage@xxxxxxxxxx; SUGAWARA Tomoyoshi;
> paolo.valente@xxxxxxxxxx; 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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