[PlanetCCRMA] Testing 3.2.2-1.rt10.1.fc15.ccrma.x86_64.rt

John S. Dey jsdey at mindspring.com
Thu Feb 9 11:12:04 PST 2012


I downloaded the kernel listed below from the testing repository.

3.2.2-1.rt10.1.fc15.ccrma.x86_64.rt #1 SMP PREEMPT RT Tue Jan 31 11:05:02 PST 2012 x86_64 x86_64 x86_64 GNU/Linux

Last night I installed on my Lenovo laptop T60p (ATI).  It has been running smoothly ever since.  WRT music:

My set up is qjackctl, aeolus, rosegarden connected together.  I set jackd:
Frames/Period: 128
Sample Rate: 48000
Periods/Buffer: 3 (latency: 8msec)
(See details below.)

midi from rosegarden plays aeolus without any xruns.  I do get some xruns when I quite rosegarden.  If I set Period/Buffer to 2, jackd will not launch.  If Periods/Buffer is 3 and I move Frames/Period to 64 (4msec), the song plays with occasional xruns.  All in all the performance seems comparable (maybe better) to recent rt versions.

Thanks for your assistance.


>From qjackctl:

14:05:51.055 JACK is starting...
14:05:51.056 /usr/bin/jackd -dalsa -dhw:0 -r48000 -p128 -n3 -P
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
no message buffer overruns
no message buffer overruns
jackdmp 1.9.7
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2011 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 60
14:05:51.112 JACK was started with PID=16291.
control device hw:0
control device hw:0
Acquire audio card Audio0
creating alsa driver ... hw:0|-|128|3|48000|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 48000Hz, period = 128 frames (2.7 ms), buffer = 3 periods
ALSA: final selected sample format for playback: 16bit little-endian
ALSA: use 3 periods for playback
14:05:53.181 JACK connection change.
14:05:53.182 Server configuration saved to "/home/robo12/.jackdrc".
14:05:53.183 Statistics reset.
14:05:53.194 Client activated.
14:05:53.208 JACK connection graph change.

More information about the PlanetCCRMA mailing list