Re: Minimum time slice for relaible Linux execution

[Dario Faggioli]

On Thu, 2011-03-31 at 11:12 -0400, Steven Rostedt wrote: 
> On Thu, Mar 31, 2011 at 01:13:55PM +0100, limp wrote:
> > Dear all,
> > 
> > I have developed a framework similar to a hypervisor that switches between
> > Linux and a RT domain.
> > As RT priority is of highest importance, I want to give more time to the RT
> > domain *but* I also want to give Linux adequate time for being able to
> > operate.
> > 
> I'm not sure there is any requirement. The only problem I guess that can
> happen is if you give such little time that the timer interrupt can't
> finish, or that every time you schedule Linux back in, the timer
> interrupt goes off and nothing else gets done.
> 
Right. Moreover, what you're doing seems very very similar to what these
guys do: https://www.rtai.org/ , http://www.xenomai.org/ .

I've never checked if (and if yes how) they do such thing as you're
thinking, but maybe they do... Have you already looked at them?

Regards,
Dario

-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
----------------------------------------------------------------------
Dario Faggioli, ReTiS Lab, Scuola Superiore Sant'Anna, Pisa  (Italy)

http://retis.sssup.it/people/faggioli -- dario.faggioli@xxxxxxxxxx

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