diagnostic tools to trace the reason xruns are happening?
koymkg at gmail.com
Mon Jun 6 11:52:46 UTC 2011
ralf, often a clock reset after my xruns has been the only opt I used with
kxstudio 10.04.02.. am not yet running 11.04
On Mon, Jun 6, 2011 at 6:46 AM, Robert Klaar <nim.batu at gmail.com> wrote:
> Out of curriosity, my soundcard's got a clock, could I get jack tyo use
> this one instead?
> On Mon, Jun 6, 2011 at 10:31 AM, Ralf Mardorf <ralf.mardorf at alice-dsl.net>wrote:
>> On Mon, 2011-06-06 at 11:16 +0900, Takashi Sakamoto wrote:
>> > Hi,
>> > I use Echo Audiofire Pre 8 and worried about JACK's rondom XRUN.
>> > Fortunately I have a friend who is Linux-based system engineer and ask
>> > him this issue. Then he gave me two solutions.
>> > 1. see IRQ in /proc/interrupts
>> > 2. use HPET as system clock source
>> I'm using HPET when ever possible. Note that HPET is very problematic,
>> you'll run out of free HPET devices very soon. IMO at the moment it only
>> can be used as alsa seq timer, if you try using it with Jack, you are
>> limited to the HPET devices that are available, each application needs
>> it's own HPET device.
>> If you should use Jack1, than try Jack2. On my machine Jack1 never
>> To enable HR-timer/HPET run
>> sudo chgrp audio /dev/hpet
>> sudo chmod g+rw /dev/hpet
>> sudo modprobe snd-hrtimer
>> $ jackd --help
>> [ --clocksource OR -c [ c(ycle) | h(pet) | s(ystem) ]
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