thewade wrote: > >> If ccrma, I've read there's a package called rtirq which seems to have >> something to do with re-prioritizing interrupts (in software) though >> I don't know the details. I think you'd need to be running the planet >> ccrma kernel (or equivalent) for it to work.. > > A (in no way) comprehensive search yields that rtirq is a patch, > possibly only to the 2.4 kernel. > Wrong. The rtirq package is just a simple SysV script, which is targeted to prioritize the soft-IRQ handlers on a preempt-realtime enabled kernel (i.e. Ingo Molnar's 2.6.x-rt patches). It is specially suited to PREEMPT_RT kernels, but it can be of use on PREEMPT_DESKTOP configured ones. Incidentally I'm the author of the rtirq thingie, which you can find the tarball attached (rtirq-20050914.tar.gz). There's no documentation, you have to use the source, sorry. As it was specially crafted for a RPM based distro (e.g. SUSE, Mandriva, Fedora) and if you can't have use of the given rtirq.spec, which is suited for rpmbuild, installations instructions are the ones as for a LSB system, as root: # cp rtirq.sh /etc/init.d/rtirq # chmod 0755 /etc/init.d/rtirq # cp rtirq.conf /etc/sysconfig/rtirq # chmod 0644 /etc/sysconfig/rtirq And then, depending on your distro, enable it as a proper init script (e.g. use something like `/sbin/chkconfig --add rtirq`). Once installed just do either of the following: # /etc/init.d/rtirq start # /etc/init.d/rtirq stop # /etc/init.d/rtirq status You'll probably get over the semantics of all these ;) Of course, you can change the default configuration that you may find in /etc/sysconfig/rtirq . Enjoy. -- rncbc aka Rui Nuno Capela rncbc@xxxxxxxxx -------------- next part -------------- A non-text attachment was scrubbed... Name: rtirq-20050914.tar.gz Type: application/x-gunzip Size: 3329 bytes Desc: not available Url : http://music.columbia.edu/pipermail/linux-audio-user/attachments/20051120/e171268a/rtirq-20050914.tar.bin