Re: [PATCH] O13int for interactivity

From: Mike Galbraith
Date: Wed Aug 13 2003 - 01:55:20 EST


At 02:11 PM 8/12/2003 -0700, Mike Fedyk wrote:
On Tue, Aug 12, 2003 at 11:42:16AM +0200, Mike Galbraith wrote:
> At 05:18 PM 8/12/2003 +1000, Nick Piggin wrote:
>
> >And no, X isn't intentionally sleeping. Its being preempted which is
> >obviously not intentional.
>
> Right. Every time X wakes the gl thread, he'll lose the cpu. Once the gl
> thread passes X in priority, X is pretty much doomed. (hmm... sane [hard]
> backboost will probably prevent that)

Isn't 2.4 doing exactly that for pipes and such?

At a glance, preemption appears to be primarily a matter of timeslice in 2.4.

-Mike

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