[LAD] LinuxSampler or JACK or what is the trouble?

[Benno Senoner]

Hi Julien,
My guess is you are running out of memory and when you start jack
perhaps due to memory locking something goes wrong. (does jackd normally
exit in case it cannot lock memory ?)
You could try to decrease the preload size in LS, recompile it and see if it
loads the big piano.
keep in mind that making the preload size too small will reduce the
polyphony as it puts lots of stress on the disk.
I'd use min voices = 2 or 4 in the configure parameter when using smaller
sample preload numbers.
the default preload is 32768 samples, you could try to decrease it to 24k or
even 16k.

cheers,
Benno
http://www.linuxsampler.org



2008/1/30, Julien Claassen <julien at c-lab.de>:
>
> Hi everyone!
>   I've still got some problems with my LS. I can load smaller gigsampler
> (upto
> 650M for sure) and even larger ones, bUT...
>   But when I load my Old Lady Grand (1.3G) it loads perfectly, but when I
> try
> to connect LS to JACK the following happens:
>   [Linuxampler console]
> [copeous output]
> Caching initial samples...OK
> cannot complete execution of the processing graph (Resource temporarily
> unavaila
> ble)
> zombified - calling shutdown handler
> Killed
>
>   [JACK console]
> [copious output]
> Noise-shaped dithering at 16 bits
> jackd watchdog: timeout - killing jackd
> Aborted
>
>   what's the trouble. I just compiled JACK 0.109.1 (svn from 29.01.2008)
> and
> LS
> 0.5.1 (tarball). My kernel is:
> host # uname -a
> Linux bach 2.6.23.1-rt11 #2 PREEMPT RT Sun Dec 30 22:43:22 CET 2007 i686
> GNU/Linux
>   I've got 512M RAM (no Xserver running), so mostly unused.
>   I compiled my LS with 8 diskstreams min and 140 max, and max 128 voices,
> the
> rest was decided by the configure script. I even tried reverting the
> disk-stream options and the voices to normal.
>   Jack was compiled without a lot of drivers I don't need, and with
> --enable-resize --enable-timestamps --enable-sse --enable-mmx
> --enable-optimization-by-compiler
>   I start my jackd with:
> jackd --timeout 4000 -R -d alsa -d hw:1 -r 48000 -H -M -p 256 -z shaped
>   I've got a 1.8Ghz CPU and my soundcard is an MAudio Delta 1010LT.
>   One last note: I checked memory sage with top: Even with the big
> gigasample
> it only takes 41% and CPU-usage is marginal.
>   So where would you suspect the most possible source for my problem?
>   Kindest regards
>          Julien
>
> --------
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>
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