Re: [LAU] Horrible number of xruns in Jack (Emu card)

From: Darren Landrum <darren.landrum@email-addr-hidden>
Date: Tue Jan 29 2008 - 02:29:22 EET

Darren Landrum wrote:
> Norval Watson wrote:
>> I got the same processor running 64-bit debian sid running jack at 44.1khz, 64 sample buffer on Audiophile 2496 soundcard with no xruns.
>> Are you running realtime kernel with realtime box checked in qjackctl/settings
>> (or with -R option on command line)?
>> (I got 4GB dual-channel RAM and 2 SATA DRIVES...)
>> My kernel: 2.6.23.11-rt14 #1 SMP PREEMPT RT Wed Dec 26 08:47:49 EST 2007 x86_64 GNU/Linux
>> Norv
>
> Checking realtime makes no difference. Still 50-60 xruns a second at 128
> samples, and if I go down to 64 samples, it crashes.

You know, I just noticed something. The xruns as they are reported are
exact multiples of 53. The first is 53, then 106, then 159, etc. The
qjackctl app looks like it updates the display once a second, so it's
not 50-60 like my previously lazy reporting said, it's exactly 53. So...
What's happening 53 times a second?

-- Darren
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@email-addr-hidden
http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
Received on Tue Jan 29 04:15:05 2008

This archive was generated by hypermail 2.1.8 : Tue Jan 29 2008 - 04:15:05 EET