On Mon, 2002-11-04 at 19:29, [EMAIL PROTECTED] wrote: > Does anybody know if the low latency and preemptible patches work with a > benh rsync'd kernel? Specifically, I was thinking of giving the > kernel-patch-ck package a whirl which includes: > * 0(1) and batch scheduler > * Preemptible kernel > * Low-latency > * Compressed cache > * Andrea Arcangeli's VM addons > Mostly all I care about are the preemptible and low-latency patches so I > can mess around with Jack.
The preemptible kernel patch now supports PPC, but IME it tends to make things worse, introducing pauses of the better part of a second. This is a known PPC specific problem which may have been fixed in the latest patches from http://www.<CC>.kernel.org/pub/linux/kernel/people/rml/preempt-kernel/v2.4/ though. I've been using the low latency patch for quite a long time with good results and no problems, the caveat is that it doesn't patch arch/ppc/config.in yet so it's not actually used unless you add CONFIG_LOLAT there. In fact, /usr/src/kernel-patches/all/ck/ck12_2.4.19.patch.gz doesn't patch it either, at least low latency and preemption won't be used unless you change that. -- Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast
