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Tasklist

FS#2980 - jackd causes xruns

Attached to Project: Arch Linux
Opened by Mike (ammiel) - Wednesday, 20 July 2005, 21:36 GMT
Last edited by Dale Blount (dale) - Wednesday, 20 July 2005, 22:46 GMT
Task Type Bug Report
Category Packages: Extra
Status Closed
Assigned To Tobias Kieslich (tobias)
Architecture not specified
Severity Low
Priority Normal
Reported Version 0.7 Wombat
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 0
Private No

Details

jackd running with jackd -Rs -d alsa causes xruns very easily, cutting through audio....


on the jack-audio-connection-kit page they have solutions for fixing this.... It's very interuptive
This task depends upon

Closed by  Tobias Kieslich (tobias)
Tuesday, 16 August 2005, 18:53 GMT
Reason for closing:  Not a bug
Additional comments about closing:  the suggested solutions are in ArchLinux the standard anyway
Comment by Tobias Kieslich (tobias) - Wednesday, 20 July 2005, 23:17 GMT
I will rebuild the 0.100 version soon anyway. Could you point me a bit more detailed please. There are many ways to improve jack but many depends on application or hardware specific issues.
Thanks.
Comment by Mike (ammiel) - Monday, 25 July 2005, 16:15 GMT
http://jackit.sourceforge.net/docs/faq.php#a57

They mention mounting /tmp/jack as tmpfs solves some problems, or making a ramfs on /mnt/ramfs and compiling jack with --with-default-tmpdir=/mnt/ramfs
Comment by Tobias Kieslich (tobias) - Monday, 25 July 2005, 18:44 GMT
ok, I see your point now. I don't think that either tweak will help you too much if at all. As you can see in /etc/fstab, ArchLinux mounts /tmp as tmpfs anyway.
tmpfs /tmp tmpfs defaults 0 0
Hence /tmp/jack exists in ram already. So none of the other options will help you on xruns. My guess is, that your soundcard uses a poorly performing Alsa driver, my via laptop eg does so. My soundblaster live powered box run w/o problems on the same generic jacksettings coming with the package. Have you already tried the seetings you suggested by recompiling jack on your own?

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