[linux-audio-user] 2.6.15.4, realtime-lsm, jackd -R, system performance down!
Lee Revell
rlrevell at joe-job.com
Mon Feb 13 13:01:31 EST 2006
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
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