[fluid-dev] e: lost connection to Jack server (svn Rev 243, over the weekend)

[jimmy]

--- On Mon, 10/19/09, David Henningsson <address@hidden> wrote:

> From: David Henningsson <address@hidden>
> Subject: Re: [fluid-dev] Re: lost connection to Jack server (svn Rev 243, 
> over the weekend)
> To: "jimmy" <address@hidden>
> Cc: address@hidden, address@hidden
> Date: Monday, October 19, 2009, 7:28 PM
> jimmy wrote:
> > 
> > --- On Mon, 10/19/09, address@hidden
> <address@hidden>
> wrote:
> 
> First - thanks for helping out with the much needed
> testing!
> 
> > I tried again, same midi file at 
> > "http://mmacdonald.com/midi/XG/Conquistador 3K
> MM.MID".  Note that this is a fairly busy, quick
> tempo/pace.
> 
> Out of curiosity, you mentioned aplaymidi before. Do you
> play the song via aplaymidi and alsa-seq drivers, or do you
> supply the midi file to fluidsynth on the command line?
> 
> > As I type this, I use the mouse to drag the scroll bar
> in a GUI text editor, with the midi song playing in the
> background, I definitely hear the jitters during the mouse
> drag.  Not surprising, just mention it here anyway.
> 
> Are XRUNs reported from Jackd? In that case, it is probably
> not FluidSynth's fault. Is jackd and fluidsynth running
> under rtprio?
> 
> > Unison.sf2 seems to give the least noise/jitters for
> me.  It is also the smaller soundfont compare to the
> ones listed below.
> 
> Interesting. I've heard that before, that smaller
> soundfonts are less CPU intensive, my only theory is that
> this has to do with the CPU cache, with more samples,
> there'll be more cache misses. This seems a little bit
> far-fetched though (not only for the CPU, ha ha). Would be
> interesting to know if prefetch instructions could improve
> the situation.
> 
> // David
>