[PlanetCCRMA] emi 2|6 usb performance

[Ryan Gallagher]

Hey mark,

here's the rest... I can configure the irq's somewhat,
would a higher/lower irq be better?  I just can't make
eth0 and usb stop sharing...

-ryan

           CPU0
  0:     398894          XT-PIC  timer
  1:       9829          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  5:     877651          XT-PIC  usb-uhci, eth0
  8:          1          XT-PIC  rtc
 12:     334067          XT-PIC  PS/2 Mouse
 14:      18218          XT-PIC  ide0
 15:       3282          XT-PIC  ide1
NMI:          0
ERR:          0

--- Mark Knecht <markknecht@attbi.com> wrote:
> Ryan,
>    It could contribute, but probably not. Try simply
> unplugging your
> Ethernet cable (as an experiment) and doing some
> audio work. If the
> problems go away, or are reduced, then you'r eon to
> it. I would guess
> that they will not go away though.
> 
>    Do you always get xruns, or only when recording
> or playing back? If
> so, the problem could really be your disk subsystem.
> 
>    You snipped out the other interrupts. Possibly
> you can post the whole
> list. IRQ5 is not a very good interrupt for anything
> that needs real
> time support.
> 
> Mark
> 
> 
> On Sat, 2002-12-28 at 13:22, Ryan Gallagher wrote:
> > Hi all,
> > 
> > I've been searching for optimal settings that will
> rid
> > my life of xruns and latency on my emagic emi 2|6
> > equipped system.  I've had some success and some
> > failures.  I still get xruns out the wazoo however
> > which ain't good obviously.  Here's my
> > question/hypothesis;
> > 
> > cat /proc/interrupts reveals that the usb hub and
> my
> > ethernet card are sharing irq 5 (this is a
> mainboard
> > issue that I have found no solution to).
> > 
> >            CPU0
> >   0:      10177          XT-PIC  timer
> >   1:         47          XT-PIC  keyboard
> >   2:          0          XT-PIC  cascade
> >   5:        369          XT-PIC  usb-uhci, eth0
> >   8:          1          XT-PIC  rtc
> > 
> > Could this little resource sharing arrangement
> > contribute to the above listed issues?  Anyone out
> > there use snd-usb-audio alsa drivers?  Share your
> > thoughts.
> > 
> > later-
> > -ryan
> > 
> > =====
> > --r--
> > 
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> 


=====
--r--

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