[linux-audio-user] -ck patches

Lee Revell rlrevell at joe-job.com
Mon Dec 11 21:24:17 EST 2006

On Mon, 2006-12-11 at 17:01 -0600, Josh Lawrence wrote:
> Hello all,
> I've noticed (and been a small part of) many discussions over the past
> couple of months regarding using Ingo's patches for realtime
> preemption.  However I've seen no discussion about Con Kolivas'
> patches, which I know are used on some systems.  Is anyone using these
> patches?  If so, what has to be done in order to get a working audio
> system going using them?  For example:  When using Ingo's patches on
> Debian, one has to build/install the kernel, install the appropriate
> patched libpam modules, and make an entry in /etc/security/limits.conf
> for members of the audio group.

> Do the last two steps still apply
> with a -ck kernel?

The last two steps have nothing to do with any kernel patch.  They
simply allow non-root users to use realtime scheduling, which is useful
for pro audio no matter what kernel you run.

Con's patches are intended to improve interactivity for gaming and
desktop stuff where everything runs at the same priority and the
scheduler has to basically guess who to give the CPU to.  They should
have no effect on pro audio applications, which explicitly request a
high-priority scheduling class.


More information about the Linux-audio-user mailing list