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Old 04-17-2009, 02:19 PM   #1
liamnixon
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Registered: Feb 2009
Location: Demorest, GA
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How to compile a Real-Time Kernel.


I'm having trouble finding a decent (up-to-date) article on how to apply a real-time patch to a kernel (Slackware).

Perhaps I need to brush up on my google skills, but any help would be appreciated. Thanks.

EDIT: I'm using the 2.6.27.7-smp kernel that's standard with Slack. Tell me if I'm overlooking something. I do that a lot.

Last edited by liamnixon; 04-17-2009 at 02:20 PM.
 
Old 04-17-2009, 02:44 PM   #2
jf.argentino
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Wich ona you talking about?
ADEOS (http://home.gna.org/adeos/index.en.html) + XENOMAI (http://www.xenomai.org/index.php/Main_Page)
RTAI (https://www.rtai.org/)
...
or the "old" preemptive kernel patch, who is now a part of the kernel, you just have to select the option when configuring the kernel, but it's not "real" real time.
 
Old 04-17-2009, 02:52 PM   #3
liamnixon
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I'm not sure which one.

Hm... decisions decisions. What would be the difference between them? The RTAI page won't load, and I'm not sure Xenomai is what I'm looking for. I'm using it for audio work, but I suppose that's obvious.
 
Old 04-18-2009, 01:09 PM   #4
jf.argentino
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As far as I know, audio-video processing don't need hard real-time, so don't try these stuff... Just compile your kernel with the CONFIG_PREEMPT_RT (not 100% sure of its name).
There's some linux flavors which are specifically designed for that, for example with FEDORA you just have to add the CCRMA repository and then you can download/manage everything (and the kernel too) with yum. There's the same thing for UBUNTU flavor (see ubuntustudio.org).
 
Old 04-18-2009, 10:42 PM   #5
liamnixon
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Alright, thanks.

Sure enough, I thought about installing Fedora again, but I just like Slackware a lot. Maybe I'll give it a go, though. I never had the Planet CCRMA repos enabled when I was using it.
 
  


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