Re: IO scheduler based IO controller V10

From: Ingo Molnar
Date: Sat Oct 03 2009 - 03:21:07 EST



* 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.

Ingo
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