linux-kernel - Re: [RESEND][RFC] BFQ I/O Scheduler

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Message-ID: <4807E0D5.2060600@cse.unsw.edu.au>
Date:	Fri, 18 Apr 2008 09:44:21 +1000
From:	Aaron Carroll <aaronc@....unsw.edu.au>
To:	Avi Kivity <avi@...ranet.com>
CC:	Jens Axboe <jens.axboe@...cle.com>,
	Paolo Valente <paolo.valente@...more.it>,
	Pavel Machek <pavel@....cz>, linux-kernel@...r.kernel.org
Subject: Re: [RESEND][RFC] BFQ I/O Scheduler

Avi Kivity wrote:
> Jens Axboe wrote:
>> I was thinking about that too. Generally I've been opposed to doing
>> scheduling decisions on anything but time, since that is always
>> relevant. When to hand out slices and to what process, that algorithm is
>> really basic in CFQ and could do with an improvement.
>>   
> 
> Jumping in at random, does "process" here mean task or mms_struct?  If 
> the former, doesn't that mean that a 100-thread process can starve out a 
> single-threaded process?

task_struct.  It would also be nice to do per-user I/O scheduling..

 -- Aaron
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