Re: [patch] "HT scheduler", sched-2.5.63-B3

Xavier Bestel (xavier.bestel@free.fr)
07 Mar 2003 09:15:44 +0100


Le jeu 06/03/2003 à 19:27, Ingo Molnar a écrit:
> On Thu, 6 Mar 2003 jvlists@ntlworld.com wrote:
>
> > P.S. IMVHO the xine problem is completely different as has nothing to
> > with interactivity but with the fact that it is soft real-time. i.e. you
> > need to distingish xine from say a gimp filter or a 3D renderer with
> > incremental live updates of the scene it is creating.
>
> it is the same category of problems: xine and X are both applications,
> which, if lagged, are noticed by users.

Actually I don't think so:
- X and games need hard interactivity: they have to compute fast a
response to an input.
- xine can precompute a few frames if it wants (I dunno if it does) and
just needs a precise timing to display them and sync the audio buffers.
It could do with CPU slices if X does the right 'display this frame at
this time' thing.

Xav

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