[linux-audio-user] 2.6.15.4, realtime-lsm, jackd -R,

Kjetil S. Matheussen kjetil at ccrma.stanford.edu
Sun Feb 12 17:45:40 EST 2006


Frank Barknecht:
> > Is it true that realtime-lsm is deprecated? How do I enable realtime
> > preemption on a 2.6.15?
> 
> It's true. The easiest alternative IMO is to use set_rtlimits. A quick
> explanation is at http://tapas.affenbande.org/?page_id=22
> 
> Basically you download and install this:
> http://www.physics.adelaide.edu.au/~jwoithe/set_rtlimits-1.1.0.tgz
> then add something like this to /etc/set_rtlimits.conf:
> 
> @audio  /usr/bin/jackd  -1 90
> 
> assuming you have a user group "audio" and start jackd like:
> 
> $ set_rtlimits -r /usr/bin/jackd --realtime -d alsa -d hw:0
> 
> Alternatively you can use a patched PAM-module, but that is a bit more
> work, if your distribution doesn't ship it.


That is rediculous. Do you really have to start program that way
to get realtime priority? In case, I guess (and _really_ hope) 
that realtime-lsm (or something similar) will continue to exist for a 
long time still.




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