Subject: Re: [linux-audio-dev] Re: desktop and multimedia as an afterthought?
From: Christian Henz (chrhenz_AT_gmx.de)
Date: Tue Jul 13 2004 - 20:55:01 EEST
On Tue, Jul 13, 2004 at 06:35:55PM +0200, Christian Henz wrote:
> On Tue, Jul 13, 2004 at 10:55:48AM -0400, Paul Davis wrote:
> > >Thus, the fact that Linux does not support protocols to prevent priority
> > >inversion (please correct me if I am wrong) kind of suggests that supporting
> > >realtime applications is not considered very important.
> >
> > we went through this (you and i in particular) right here on LAD a
> > year or so ago. while i might agree with you about the priority given
> > to RT-ish apps, my recollection of the end of that discussion is that
> > priority inheritance is neither necessary nor sufficient to allow
> > adequate RT performance. priority inversion generally can be factored
> > out through application redesign, and the protocols i've seen to
> > address it are not useful for RT purposes - they just help deadlock.
> >
>
> Hmm, I've just recently learned about the Priority Ceiling Protocol,
> an extension to Priority Inversion Protocol, which explicitly prevents
Duh, s/Inversion/Inheritance/ ;-)
cheers
Christian
-- "Somewhere in Texas... a village is missing its idiot."
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