Hallo, plessas@sbox.tugraz.at hat gesagt: // plessas@sbox.tugraz.at wrote:
trying to build a low-latency kernel on debian for use with pd 0.37 and alsa and an Rme HDSP card. I read a lot about different patches one can apply, but most information about those is from 2000/01 when 2.2 and 2.4 kernels were new and shiny. Has anyone had success doing this so far, and with wich patches on wich kernels, and how low is the resulting latency you get?
Building a LL patched kernel (2.4) is easy on Debian. Just install these patch packages:
$ apt-get install kernel-patch-2.4-lowlatency kernel-patch-2.4-preempt
Then use make-kpkg to build your custom kernel like:
$ make-kpkg --added-patches lowlatency,preempt kernel_image modules_image
Voila.
I didn't run any benchmarks, but without these patches you'll feel miserable.
For Jack you also want the tiny capabilites patch, that is normally done by hand as described on jackit.sf.net or in the jackd Debian package README.
ciao
Frank Barknecht _ ______footils.org__