[linux-audio-user] 2.6.15.4, realtime-lsm, jackd -R, system performance down!

[Lee Revell]

On Mon, 2006-02-13 at 13:08 +0100, Ismael Valladolid Torres wrote:
> fons adriaensen escribe:
> > > How much memory does your machine have? Is it swapping when this
> > > slowdown occurs?
> > 
> > Good question. This really looks like an 'out of memory' problem.
> 
> Just 160MB but then why does it swap only when jackd is running
> realtime?

Because jackd only locks all its memory in realtime mode.

Try adding this line to /etc/security/limits.conf:

*               stack   hard    512

then reboot.  This will save you 7.5MB of unswappable memory per thread.

Lee