Re: [Protux-devel] more on RTC

[Luciano Giordana]

Thanks, I already found how it works.
All latest kernels have the ability to put processes in RR scheduling priority 
(real time) with maximum
priority. You have to use a sched_setscheduler call (give a man in it to learn 
how to use it) from <sched.h>
to make the current process in real time mode.
But that does not solve the xruns (it reduces, but just a little). I am on my 
way to apply the low latency patch on
my kernel . As soon as I get, I plan to put a little tutorial on the website 
for professional users who want to get
protux working a low-latency environment.


On Friday 29 August 2003 13:59, rsff wrote:
> Luciano,
>
> You could also try contacting the guys who work on it on the Linux
> Kernel. They could probably explain how it works, and how you could use
> it for your advantage.
>
> Fabio.
>
> Em Sex, 2003-08-29 às 13:12, Luciano Giordana escreveu:
> > oh, forgot to say
> > I need these RTC docs because after hacking a lot in order to reduce
> > onderruns on MADM, I wasnt able , so decided to try the low-latency stuff
> > to see if it reduces. ( i getting 1 xrun for each 20 fragments
> > transferred!)
> >
> > But I read somewhere and using RTC scheduling, which is a standard thing
> > in current kernels (including mine) could reduce them either. But I dont
> > know too much about RTC.
> >
> > I tested and mplayer is using it in my box, so surely it is available to
> > me. It is only a matter of understandint exactly how it works, and how to
> > using in a app.

-- 
Best Regards
--
Luciano Giordana - Musician - Certified Java/GNU C++ Developer 
Free Software Evangelist - Project Mustux - Musician Tools for GNU/Linux
http://www.freesoftware.fsf.org/mustux
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