Re: IO scheduler based IO controller V10

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On Sat, Oct 03 2009, Ingo Molnar wrote:
> 
> * Mike Galbraith <efault@xxxxxx> wrote:
> 
> >  	unsigned int cfq_desktop;
> > +	unsigned int cfq_desktop_dispatch;
> 
> > -	if (cfq_cfqq_idle_window(cfqq) && cfqd->rq_in_driver[BLK_RW_ASYNC])
> > +	if (cfq_cfqq_idle_window(cfqq) && cfqd->rq_in_driver[BLK_RW_ASYNC]) {
> > +		cfqd->desktop_dispatch_ts = jiffies;
> >  		return 0;
> > +	}
> 
> btw., i hope all those desktop_ things will be named latency_ pretty 
> soon as the consensus seems to be - the word 'desktop' feels so wrong in 
> this context.
> 
> 'desktop' is a form of use of computers and the implication of good 
> latencies goes far beyond that category of systems.

I will rename it, for now it doesn't matter (lets not get bogged down in
bike shed colors, please).

Oh and Mike, I forgot to mention this in the previous email - no more
tunables, please. We'll keep this under a single knob.

-- 
Jens Axboe

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