diagnostic tools to trace the reason xruns are happening?

bart deruyter bart.deruyter at gmail.com
Sun Jun 5 11:25:32 UTC 2011


My system now is this :
2.6.38-8-lowlatency #42+all1~natty1-Ubuntu SMP PREEMPT Fri Apr 29 03:22:51
UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

It already says PREEMPT aparently, but no rt.

thanks for looking into this, might make life much easier :-).


http://www.bartart3d.be/


2011/6/5 Ralf Mardorf <ralf.mardorf at alice-dsl.net>

> On Sun, 2011-06-05 at 12:20 +0200, bart deruyter wrote:
> > Ralf,
> >
> > thanks for the explanation. It does work better with the performance
> > setting. I do still get xruns when using midi though. Using
> > sooperlooper, I trigger recording with the pedal of my keyboard,
> > through an usb2midi misport2x2.
> >
> > I guess the search for the PREEMPT_RT kernel is in place.. is there a
> > PPA I could use, or do I have to build it myself? Or is it the
> > linux-headers-2.6.31-12-realtime? I have it listed in the falk-tx
> > ppa.
> >
> > grtz,
> > Bart
>
> What architecture do you run, 32-bit or 64-bit and what is the version
> of the generic kernel you run?
>
> uname -a
>
> will show you.
>
> I can send a script that will build a kernel-rt automatically. Since you
> use the generic kernel, you could try the preempt only kernel for Ubuntu
> Studio. IMO it's better to use a PREEMPT RT instead of a PREEMPT only,
> but perhaps it works for you. Perhaps it's in a repository, see
> https://launchpad.net/~abogani/+archive/ppa?field.series_filter=natty<https://launchpad.net/%7Eabogani/+archive/ppa?field.series_filter=natty>
>
> Hth,
>
> Ralf
>
>
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