[LAU] Jack command line connect

Dragan Noveski perodog at gmx.net
Fri Oct 12 15:36:15 EDT 2007


Simon Williams wrote:
> Geoff Beasley wrote:
>   
>> On Friday 12 October 2007 09:28:34 Simon Williams wrote:
>>     
>>> In my attempt to stop the flipping xruns I get even from a really simple
>>> jack/fluidsynth (with 6.5mb soundfont) setup, I'm going to see if I can
>>> get it to run without xruns at all- so I'm going to stop the X server
>>> (which takes up quite a lot of cpu and memory).
>>>
>>>       
>> that's not the problem Simon.
>>     
>  > What kernel ?
>
> 2.6.22-ARCH
>
>  > Distro ?
>
> Arch Linux
>
>  > Alsa
>
> 1.0.14
>
>  > Jack
>
> 0.103.0
>
>   
>> IRQ's?
>>     
>
> What about them?
>
>   
try :

cat /proc/interrupts
>  > do you use Rui's rtirq?
>
> What is that?
>
>   
>> what's the output of 'ps -Leo rtprio,cmd' 
>>     
>
> RTPRIO CMD
>       - init [3]
>       - [kthreadd]
>      99 [migration/0]
>       - [ksoftirqd/0]
>      99 [watchdog/0]
>       - [events/0]
>       - [khelper]
>       - [kblockd/0]
>       - [kacpid]
>       - [kacpi_notify]
>       - [kseriod]
>       - [pdflush]
>       - [pdflush]
>       - [kswapd0]
>       - [aio/0]
>       - [kjournald]
>       - [ksuspend_usbd]
>       - [khubd]
>       - /sbin/udevd --daemon
>       - [pccardd]
>       - [pccardd]
>       - [kpsmoused]
>       - [irda_sir_wq]
>       - [kjournald]
>       - [kjournald]
>       - [kjournald]
>       - /usr/sbin/syslog-ng
>       - /usr/sbin/acpid
>       - /sbin/agetty 38400 vc/1 linux
>       - /sbin/agetty 38400 vc/2 linux
>       - /sbin/agetty 38400 vc/3 linux
>       - /sbin/agetty 38400 vc/4 linux
>       - /sbin/agetty 38400 vc/5 linux
>       - /sbin/agetty 38400 vc/6 linux
>       - /usr/sbin/crond
>       - /usr/sbin/ifplugd -i eth0 -fwI -u0 -d10
>       - /usr/bin/dbus-daemon --system
>       - hcid: processing events
>       - /usr/sbin/sdpd
>       - /opt/kde/bin/kdm
>       - /usr/bin/hidd --server
>       - /usr/sbin/cupsd
>       - /usr/sbin/sshd
>       - /usr/bin/X -br :0 vt7 -auth /var/run/xauth/A:0-SYECrK
>       - [krfcommd]
>       - /sbin/dhcpcd -t 5 -h excalibur eth0
>       - sshd: simon [priv]
>       - sshd: simon at pts/2
>       - -bash
>       - -:0
>       - /bin/sh /opt/kde/bin/startkde
>       - /usr/bin/gpg-agent --daemon
>       - /usr/bin/ssh-agent -s
>       - start_kdeinit --new-startup +kcminit_startup
>       - kdeinit Running...
>       - dcopserver [kdeinit] --nosid
>       - klauncher [kdeinit] --new-startup
>       - kded [kdeinit] --new-startup
>       - kwrapper ksmserver
>       - ksmserver [kdeinit]
>       - kwin [kdeinit]
>       - kdesktop [kdeinit]
>       - kicker [kdeinit]
>       - kio_file [kdeinit] file 
> /var/tmp/ksocket-simon/klauncherzMCDnb.slave-socket 
> /var/tmp/ksocket-simon/kdesktop5OF0nc.slave-socket
>       - kxkb [kdeinit]
>       - konqueror [kdeinit] --preload
>       - konqueror [kdeinit] --preload
>       - yakuake
>       - kalarmd --autostart
>       - krandrtray
>       - /bin/bash
>       - /bin/bash
>       - qjackctl
>       9 qjackctl
>       - jackd -R -p128 -t2000 -dalsa -dhw:0 -r44100 -p1024 -n2 -Phw:0
>       - jackd -R -p128 -t2000 -dalsa -dhw:0 -r44100 -p1024 -n2 -Phw:0
>       - jackd -R -p128 -t2000 -dalsa -dhw:0 -r44100 -p1024 -n2 -Phw:0
>      20 jackd -R -p128 -t2000 -dalsa -dhw:0 -r44100 -p1024 -n2 -Phw:0
>      10 jackd -R -p128 -t2000 -dalsa -dhw:0 -r44100 -p1024 -n2 -Phw:0
>       - fluidsynth -a jack -r 44100 
> /usr/share/soundfonts/RolandNicePiano.sf2
>       9 fluidsynth -a jack -r 44100 
> /usr/share/soundfonts/RolandNicePiano.sf2
>       - fluidsynth -a jack -r 44100 
> /usr/share/soundfonts/RolandNicePiano.sf2
>       - knotify [kdeinit]
>       - ps -Leo rtprio,cmd
>
> Why are there 2 qjackctls, 5 jackds and 3 fluidsynths in that list? I'm 
> only running one of each.
>
>   
those are kind of several instances of the appis - ignore it, but go to 
qjackctl->setup and make the 'priority' variable to 70.

i think the kernel you are running is not an rt-kernel?

cheers,
doc
> Thanks
> Simon
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>
>   




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