[LAU] Performance problems.

J M Needham J.M.Needham at bath.ac.uk
Fri May 23 05:20:08 EDT 2008


Hi Matthias,

Good point; I should have added that in the post. I am part of group
audio. Performance is better thanks to http://ardour.org/node/1759; I#'ve
disabled cpu freq scaling and added the nohz=off line to my kernel options
on bootup, which has helped alot, but I'm still having difficulty. (it
also seemed the problem with ardour was a bad session)

Running Jamin, Ardour and Hydrogen is about it at the moment on my system.
I can get ZYn in there, but Rosegarden is a no. Jamin seems to eat lots of
CPU, which it didn't used to on my other Kubuntu boxes. Anyone got got any
other ideas? What I need is lower latency and I need to be able to run all
the apps I need at the same time. I used to run Hydrogen, Jamin,
Rosegarden and Zyn on my little PC (1.6GHz Athlon, 512M ram, SB Audigy),
but I don't seem to be able to get even there on my 2.6 GHz dual core
Intel with 2G ram, but Intel-HDA. Would really love some help with this or
some links.

Jonty

On Fri, 23 May 2008, Matthias Schönborn wrote:

> Am Freitag 23 Mai 2008 00:22:48 schrieb J M Needham:
> > Thanks for that, although I've already changed that and I don't really
> > know where to go from here. The uncommented bit is:
> > @audio - rtprio 99
> > @audio - memlock unlimited
> > @audio - nice -10
> >
> >
> > Any ideas? This was from a post which I can no longer find.
> >
> > Jonty
>
>
> Hi Jonty,
>
> Did you add yourself to the group audio? Otherwise you wouldn't benefit from
> these changes.
>
> Matthias
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> Linux-audio-user at lists.linuxaudio.org
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>




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