Re: [RFC][PATCH] Multimedia scheduling class, take 2

From: Henrik Austad
Date: Tue May 12 2009 - 05:40:44 EST


On Mon, May 11, 2009 at 11:22:28AM +0300, Jussi Laako wrote:
> Hi,
>
> Peter Zijlstra wrote:
> [..]
> > And 2), the kernel can help by providing a deadline based scheduler,
> > which should make the above easier and less likely to mess up the rest
> > of the system. ie. a deadline scheduled application will not exceed its
> > allotted budget, unlike a FIFO scheduled app.
>
> Any news on this one?

I'm still working on my SCHED_PFAIR stab. Expect an RFC someday soon

pfair is a deadline-driven algorithm that also executes the tasks at a
steady rate, minimizing jitter as well as meeting deadlines. This give
tasks better expressiveness when it comes to instructing the scheduler how
to treat the task. I'll give a more formal intro in the upcoming RFC :)

--
henrik

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