13 Jun
2007
13 Jun
'07
6:25 p.m.
If you run "hdparm -t /dev/'hd or
sd1partion" tell you ?
I measured it 3 times to get an idea of the average:
# hdparm -t /dev/sda1
/dev/sda1:
Timing buffered disk reads: 52 MB in 3.04 seconds = 17.12 MB/sec
# hdparm -t /dev/sda1
/dev/sda1:
Timing buffered disk reads: 50 MB in 3.17 seconds = 15.79 MB/sec
# hdparm -t /dev/sda1
/dev/sda1:
Timing buffered disk reads: 100 MB in 2.98 seconds = 33.55 MB/sec
On Thu, 2007-06-14 at 22:09 +0200, Markus Herhoffer wrote:
I get the same high frequecy of xruns both with
-p 1024 and 2048:
22:06:19.818 Patchbay deactivated.
22:06:19.953 Statistics reset.
22:06:20.126 MIDI connection graph change.
22:06:20.286 MIDI connection change.
22:07:01.574 Startup script...
22:07:01.574 artsshell -q terminate
22:07:02.935 Startup script terminated with exit status=256.
22:07:03.017 JACK is starting...
22:07:03.018 jackd -R -P7 -u -dalsa -r44100 -p1024 -n2 -D -Chw:0 -Phw:0
22:07:03.047 JACK was started with PID=9622 (0x2596).
jackd 0.101.1
Copyright 2001-2005 Paul Davis and others.
jackd 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 compiled with System V SHM support.
loading driver ..
apparent rate = 44100
creating alsa driver ... hw:0|hw:0|1024|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 1024 frames, buffer = 2 periods
nperiods = 2 for capture
nperiods = 2 for playback
**** alsa_pcm: xrun of at least 0.017 msecs
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.018 msecs
**** alsa_pcm: xrun of at least 0.016 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
**** alsa_pcm: xrun of at least 0.014 msecs
22:07:05.146 Server configuration saved to "/home/d135-1r43/.jackdrc".
22:07:05.148 Statistics reset.
22:07:05.796 Client activated.
22:07:05.798 Audio connection change.
22:07:05.802 Audio connection graph change.
22:07:05.802 XRUN callback (1).
**** alsa_pcm: xrun of at least 0.019 msecs
**** alsa_pcm: xrun of at least 0.019 msecs
**** alsa_pcm: xrun of at least 0.022 msecs
**** alsa_pcm: xrun of at least 41.788 msecs
**** alsa_pcm: xrun of at least 0.017 msecs
**** alsa_pcm: xrun of at least 0.014 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
**** alsa_pcm: xrun of at least 0.018 msecs
**** alsa_pcm: xrun of at least 0.013 msecs
**** alsa_pcm: xrun of at least 0.012 msecs
22:07:07.701 XRUN callback (8).
22:07:07.837 XRUN callback (7 skipped).
**** alsa_pcm: xrun of at least 0.018 msecs
**** alsa_pcm: xrun of at least 0.016 msecs
**** alsa_pcm: xrun of at least 0.012 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
22:07:09.869 XRUN callback (3 skipped).
**** alsa_pcm: xrun of at least 0.020 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
22:07:10.376 Client deactivated.
22:07:10.377 JACK is stopping...
jack main caught signal 15
no message buffer overruns
22:07:10.717 JACK was stopped successfully.
22:07:10.718 Post-shutdown script...
22:07:10.719 killall jackd
jackd: no process killed
22:07:11.086 Post-shutdown script terminated with exit status=256.
22:08:22.296 Startup script...
22:08:22.297 artsshell -q terminate
22:08:22.867 Startup script terminated with exit status=256.
22:08:22.868 JACK is starting...
22:08:22.868 jackd -R -P7 -u -dalsa -r44100 -p2048 -n2 -D -Chw:0 -Phw:0
22:08:22.874 JACK was started with PID=9631 (0x259f).
jackd 0.101.1
Copyright 2001-2005 Paul Davis and others.
jackd 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 compiled with System V SHM support.
loading driver ..
apparent rate = 44100
creating alsa driver ... hw:0|hw:0|2048|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 2048 frames, buffer = 2 periods
nperiods = 2 for capture
nperiods = 2 for playback
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.016 msecs
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.019 msecs
22:08:24.927 Server configuration saved to "/home/d135-1r43/.jackdrc".
22:08:24.928 Statistics reset.
22:08:24.931 Client activated.
22:08:24.932 Audio connection change.
22:08:24.935 Audio connection graph change.
**** alsa_pcm: xrun of at least 0.017 msecs
22:08:25.686 XRUN callback (1).
**** alsa_pcm: xrun of at least 0.029 msecs
**** alsa_pcm: xrun of at least 0.028 msecs
**** alsa_pcm: xrun of at least 0.012 msecs
**** alsa_pcm: xrun of at least 0.013 msecs
22:08:26.970 XRUN callback (4 skipped).
**** alsa_pcm: xrun of at least 0.020 msecs
**** alsa_pcm: xrun of at least 0.013 msecs
**** alsa_pcm: xrun of at least 0.017 msecs
22:08:28.870 XRUN callback (8).
22:08:29.002 XRUN callback (2 skipped).
**** alsa_pcm: xrun of at least 0.027 msecs
**** alsa_pcm: xrun of at least 0.012 msecs
**** alsa_pcm: xrun of at least 0.010 msecs
22:08:31.042 XRUN callback (2 skipped).
**** alsa_pcm: xrun of at least 0.019 msecs
22:08:31.310 XRUN callback (12).
22:08:31.745 Client deactivated.
22:08:31.746 JACK is stopping...
jack main caught signal 15
no message buffer overruns
22:08:32.001 JACK was stopped successfully.
22:08:32.003 Post-shutdown script...
22:08:32.003 killall jackd
jackd: no process killed
22:08:32.215 Post-shutdown script terminated with exit status=256.
DuWayne Holsbeck wrote:
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user Being that you probably do not need really low
latencey, if you are not
doing overdubs, you could change your period setting to 1024 or greater
frames vs the 256 setting. This usually works for me, I have an A31
thinkpad, with many hours of live recording use, both with the onboard
chip and an RME HDSP.
Cheers
DRH
On Thu, 2007-06-14 at 21:44 +0200, Markus Herhoffer wrote:
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user Hi!
I want to use Jack on my Thinkpad X60s notebook with the built in
soundchip. I know that this is not the best hardware, but I need a
possibility to record some things mobile.
I get quite a few xruns every time I start jack with qjackctl -- too
many to work efficiently. I use Gentoo kernel 2.6.20-gentoo-r8,
realtime-lsm as module and the kernel option "Preemption Model
(Preemptible Kernel (Low-Latency Desktop))".
This is the output of qjackctl (I stopped Jack intentionally):
21:40:29.357 Patchbay deactivated.
21:40:29.486 Statistics reset.
21:40:29.553 MIDI connection graph change.
21:40:29.727 MIDI connection change.
21:40:31.468 Startup script...
21:40:31.468 artsshell -q terminate
21:40:32.225 Startup script terminated with exit status=256.
21:40:32.293 JACK is starting...
21:40:32.293 jackd -R -P7 -u -dalsa -r44100 -p256 -n2 -D -Chw:0 -Phw:0
21:40:32.295 JACK was started with PID=9380 (0x24a4).
jackd 0.101.1
Copyright 2001-2005 Paul Davis and others.
jackd 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 compiled with System V SHM support.
loading driver ..
apparent rate = 44100
creating alsa driver ... hw:0|hw:0|256|2|44100|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 44100Hz, period = 256 frames, buffer = 2 periods
nperiods = 2 for capture
nperiods = 2 for playback
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.014 msecs
**** alsa_pcm: xrun of at least 0.016 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
**** alsa_pcm: xrun of at least 0.013 msecs
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
**** alsa_pcm: xrun of at least 0.018 msecs
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.017 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
**** alsa_pcm: xrun of at least 0.017 msecs
**** alsa_pcm: xrun of at least 0.014 msecs
**** alsa_pcm: xrun of at least 0.013 msecs
**** alsa_pcm: xrun of at least 0.014 msecs
21:40:34.356 Server configuration saved to "/home/d135-1r43/.jackdrc".
21:40:34.357 Statistics reset.
21:40:34.380 Client activated.
21:40:34.382 Audio connection change.
21:40:34.391 Audio connection graph change.
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.039 msecs
21:40:34.446 XRUN callback (1).
**** alsa_pcm: xrun of at least 0.013 msecs
**** alsa_pcm: xrun of at least 0.015 msecs
**** alsa_pcm: xrun of at least 0.017 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
**** alsa_pcm: xrun of at least 0.026 msecs
**** alsa_pcm: xrun of at least 0.010 msecs
**** alsa_pcm: xrun of at least 0.014 msecs
**** alsa_pcm: xrun of at least 0.016 msecs
**** alsa_pcm: xrun of at least 0.016 msecs
**** alsa_pcm: xrun of at least 0.016 msecs
**** alsa_pcm: xrun of at least 0.014 msecs
**** alsa_pcm: xrun of at least 0.010 msecs
**** alsa_pcm: xrun of at least 0.011 msecs
21:40:35.649 Client deactivated.
21:40:35.651 JACK is stopping...
jack main caught signal 15
no message buffer overruns
21:40:35.904 JACK was stopped successfully.
21:40:35.907 Post-shutdown script...
21:40:35.907 killall jackd
jackd: no process killed
21:40:36.242 Post-shutdown script terminated with exit status=25
These are my cards:
# cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xee240000 irq 22
# lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High
Definition Audio Controller (rev 02)
What to do? Are there some things to tweak?
Markus
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_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user