Re: [LAU] options for hard real time kernel for raring 13.04

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To: Marco Donnarumma <devel@...>
Cc: linux-audio-user <linux-audio-user@...>
Date: Wednesday, September 11, 2013 - 10:26 am

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It may sound obvious, but: did you checked that your are using the
"performance" governor for cpu frequency scaling?

I found that using the "ondemand" governor can cause more xruns...

I don't know mint but there should be a cpufreq-utils package that provides
relevant utilities for this.

HTH
Ciao
Il giorno 11/set/2013 10:53, "Marco Donnarumma" ha
scritto:

> Hey all,

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It may sound obvious, but: did you checked that your are usi=
ng the "performance" governor for cpu frequency scaling?
I found that using the "ondemand" governor can cau=
se more xruns...
I don't know mint but there should be a cpufreq-utils pa=
ckage that provides relevant utilities for this.
HTH
Ciao
Il giorno 11/set/2013 10:53, "Marco Donnaru=
mma" <devel@thesaddj.com&=
gt; ha scritto:
Hey all,I just switched =
to Mint Olivia
15 (based on Ubuntu Raring 13.04). I use quite cpu-intensive puredata=20
patches with processing of 2 live audio inputs on a firewire soundcard=20
through ffado and qjackctl (jack2).

Although my machine runs a low-latency kernel and it has
been configured for pro audio (I use the realtimeConfigurationScan=20
script), I still get xruns and sometimes qjackctl randomly hangs up=20
making the sound to stop completely.

Before, I used to work with ubuntu 10.04 and rt-kernel without a=20
itch. Is anybody still using a rt-kernel with the latest Mint or Ubuntu,
or just refining settings etc..?if a rt-kernel is the b=
est option, should I patch mine, since it looks like there are no packaged =
rt-kernels for Raring?

Can't access Abogani ppa, and KXS kernels are available up to Precise.<=
br>thanks in advance for any hint, or suggestions about what=
to try!best wishes,
--Marco DonnarummaNew Media + Sonic Arts Practitioner, Per=
former, Teacher, Director.Embodied Audio-Visual Interaction Research Te=
am.Department of Computing, Goldsmiths University of London~~~~~~~~=
~~~~~~~~~~~~~~~~~~~~~

Portfolio: http://=
marcodonnarumma.com
Research: http://res.marcodonnarumma.comDirector: http://www.l=
iveperformersmeeting.net

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Messages in current thread:
[LAU] options for hard real time kernel for raring 13.04, Marco Donnarumma, (Wed Sep 11, 8:53 am)
Re: [LAU] options for hard real time kernel for raring 13.04, Emiliano Grilli, (Wed Sep 11, 10:26 am)
Re: [LAU] options for hard real time kernel for raring 13.04, Marco Donnarumma, (Wed Sep 11, 11:53 am)
Re: [LAU] options for hard real time kernel for raring 13.04, Raffaele Morelli, (Wed Sep 11, 1:31 pm)
Re: [LAU] options for hard real time kernel for raring 13.04, Raffaele Morelli, (Wed Sep 11, 9:50 am)
Re: [LAU] options for hard real time kernel for raring 13.04, Jeremy Jongepier, (Wed Sep 11, 9:08 am)