diagnostic tools to trace the reason xruns are happening?
nim.batu at gmail.com
Mon Jun 6 11:46:59 UTC 2011
Out of curriosity, my soundcard's got a clock, could I get jack tyo use this
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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