Re: [Linuxsampler-devel] LinuxSampler BUGS to fix (Christian & others)

[Mark K. <mar...@co...>]

On Sat, 2003-11-15 at 18:03, Christian Schoenebeck wrote:
> Es geschah am Sonntag, 16. November 2003 00:15 als Mark Knecht schrieb:
> > Sitting idle, on my Athlon-XP 2600+ with 512MB, LS is using 0.7%. Even
> > banging away on it, but being careful not to use too many notes, it
> > never gets above 5% on my machine. I don't think this means much, but
> > it's a data point.
> 
> Benno is using a compressed gig whereas you most probably are using a normal 
> one. That's the reason for the cpu usage difference.

OK.

> 
> > > You could try to load up LS to 256 voices and see how much CPU
> > > it uses.
> > > but in that case increase the preload size too
> > > audiothread.h:#define NUM_RAM_PRELOAD_SAMPLES 65536
> >
> > Tried it. The program dies somewhere around 120-140 voices complaining:
> >
> > Wizard root # linuxsampler --numfragments 2 --gig
> > /mnt/samples/Gigs/Pianos/Bardstown\ Audio/The\ Bosendorfer\ Imperial\
> > Grand\ Version\ 2.2.gig
> > Loading gig file...OK
> > WARNING, can't mlockall() memory!: Cannot allocate memory
> > WARNING, can't mlockall() memory!: Cannot allocate memory
> 
> That's a sign of low free memory when it's unable to lock it.

This only popped up when trying to allow 256 voices on 512MB. I will
grant you that my GSt machine has 768MB and is only allowed to do 96
voices, so I'm not overly concerned, but I am curious what's driving
this. What's the equation for how much memory is required by LS right
now?

And can't one simply allocate less memory and take a risk of drop outs
because we have less of the sample in memory? Or are there hints in the
gig file that are telling you what to do? I should try some smaller
libraries and see what happens.

- Mark