[linux-audio-user] kernel - using rtlimits, realtime_lsm

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Hello all,

I'm a bit over my head here, so please be gentle :)

I've been working with Ubuntu 5.10 and trying to use it as an audio
machine.  I have been learning about different approaches to getting a
multimedia kernel (low latency, etc.).  In reading around the web, I
see that there are three general approaches:

1.  Build your own kernel from scratch - too complicated for me at this time
2.  Use the realtime_lsm module on an existing kernel - I've tried
this, but I read it's no longer supported in the kernel because of
#3...
3.  Use rtlimits, which is already a part of the default kernel.

Last night I downloaded the set_rtlimits program and was able to get
jackd running with real time capabilities.  I haven't done any
real-world work yet, so I don't know if my efforts were truly
successful.  Here are my questions:

1.  Is rtlimits all that I need for audio work?  It seems way too
simple.  I remember that people using 2.4 kernels had at least two
patches that had to be applied before the kernel was suitable for
audio work.  If I use rtlimits, do I still need to build a kernel
with, for instance, the ck patches for a preemptable kernel?
2.  Is anyone using rtlimits instead of realtime_lsm?  Is there any
benefit to using one over the other, in terms of real-world audio
work?
3.  Should I just break down and install DeMudi?  :)

I hope my questions make sense.  Please feel free to correct any
errors in my logic here, that is exactly what I am looking for - to
learn how to do things myself the right way.

Thanks!

Josh
--
Josh Lawrence
http://www.hardbop200.com


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