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

[Satoshi UCHIDA]

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 at infradead.org]
> Sent: Wednesday, November 12, 2008 5:58 PM
> To: Satoshi UCHIDA
> Cc: linux-kernel at vger.kernel.org;
> containers at lists.linux-foundation.org;
> virtualization at lists.linux-foundation.org; jens.axboe at oracle.com; 'Ryo
> Tsuruta'; 'Andrea Righi'; ngupta at google.com; fernando at oss.ntt.co.jp;
> vtaras at openvz.org; 'Hirokazu Takahashi'; balbir at linux.vnet.ibm.com;
> 'Andrew Morton'; menage at google.com; SUGAWARA Tomoyoshi;
> paolo.valente at unimore.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 at infradead.org]
> Sent: Wednesday, November 12, 2008 5:58 PM
> To: Satoshi UCHIDA
> Cc: linux-kernel at vger.kernel.org;
> containers at lists.linux-foundation.org;
> virtualization at lists.linux-foundation.org; jens.axboe at oracle.com; 'Ryo
> Tsuruta'; 'Andrea Righi'; ngupta at google.com; fernando at oss.ntt.co.jp;
> vtaras at openvz.org; 'Hirokazu Takahashi'; balbir at linux.vnet.ibm.com;
> 'Andrew Morton'; menage at google.com; SUGAWARA Tomoyoshi;
> paolo.valente at unimore.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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