iTunes like features ?

[Robert Watson]

On Fri, 28 Jan 2005, Julio Capote wrote:

> If you have a reasonably fast machine, this shouldnt be a problem; the
> 5.x branch can preempt that much thus far. Hence, youll never hear my
> music stop (1.6ghz athlon-xp, 512ram), even under the most extreme
> conditions (compiling, multiple programs opened on several workspaces),
> only time I hear it skip, is when im extracting a large bz2 archive, but
> I believe thats mostly due to the synchronous nature of the file
> system...just my 2 cents.

It would be quite interesting to know if audio skipping is improved
perceptibly with the SMP VFS work that Jeff Roberson has been doing.  This
work is in 6.x-CURRENT, and requireds debug.mpsafevfs to be turned on in
the loader (and comes with risks, it's experimental) -- however, that
would allow the sound card interrupt handlers to more quickly preempt
under cpu load.

Robert N M Watson


> 
> 
> 
> - Julio Capote
> 
> 
> Wilko Bulte wrote:
> 
> 
> >On Sat, Jan 29, 2005 at 09:34:45AM +0100, Bram Van Steenlandt wrote..
> >  
> >
> >>Hi
> >>
> >>I  am working on something that requires the pc to play mp3 continiously
> >>The pc does however has other tasks than this an once in a while the mp3 
> >>stops (when you start mozilla for example)
> >>
> >>with apple and iTunes he tune keeps playing no mather what you do (it is 
> >>compiled into the kernel or something).
> >>
> >>Can I do this with freebsd, can I say something like:
> >>This program got to have 10% of the available cpu and disk time or 
> >>something like it ?
> >>    
> >>
> >
> >Have you looked at stuff like this in the kernel config (example
> >taken from 4.x btw):
> >
> >#####################################################################
> ># POSIX P1003.1B
> > 
> ># Real time extensions added in the 1993 Posix
> ># P1003_1B: Infrastructure
> ># _KPOSIX_PRIORITY_SCHEDULING: Build in _POSIX_PRIORITY_SCHEDULING
> ># _KPOSIX_VERSION:             Version kernel is built for
> >
> >options         P1003_1B
> >options         _KPOSIX_PRIORITY_SCHEDULING
> >options         _KPOSIX_VERSION=199309L
> >
> >
> >
> >  
> >
> 
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