[linux-audio-user] Is everyone sick of interrupts yet?

[Lee Revell]

On Tue, 2004-09-28 at 11:40, R Parker wrote:
> With my setup, I'm getting decent enough reliability
> at 128 frames but when I record and mix, I turn it
> back to 1024. Under no circumstances can I tolerate a
> single xrun.
> 

If you cannot tolerate a single xrun, then you NEED to use a low latency
kernel.  Screwing around with interrupts and the FC2 kernel is a waste
of time.  I get no xruns at 32 (!) frames using 2.6 with the VP patches,
and my soundcard shares an interrupt with USB:

rlrevell at mindpipe:~$ cat /proc/interrupts
           CPU0
  0:   65522406          XT-PIC  timer  0/22406
  1:      17900          XT-PIC  i8042  2/17900
  2:          0          XT-PIC  cascade  0/0
  8:   10844340          XT-PIC  rtc  0/44340
 10:     191142          XT-PIC  uhci_hcd, EMU10K1  0/91142
 11:    2875535          XT-PIC  uhci_hcd, eth0  0/75535
 12:          0          XT-PIC  uhci_hcd  0/0
 15:     163810          XT-PIC  ide1  0/63809
NMI:          0
ERR:          0

rlrevell at mindpipe:~$ uname -r
2.6.9-rc2-mm3-VP-S6

Lee