[linux-audio-user] IRQ sharing

[Eric Dantan Rzewnicki]

On Sun, Mar 05, 2006 at 02:02:18AM -0800, Florin Andrei wrote:
> On Sun, 2006-03-05 at 03:35 -0500, Eric Dantan Rzewnicki wrote:
> > Old school Linux Audio lore held that it was bad to let your audio card
> > share an IRQ with anything else. Is this a myth, or still good solid
> > practical advice?
> 
> It might still have some influence, but nowadays the typical hardware is
> so fast, it doesn't matter like it used to.
> 
> I'm getting pretty good latency with no xruns when running jackd with
> real-time priority, despite INT 5 being crowded like hell:

Does anyone know if dual HyperThreaded Xeon's might impact this at all?
I've got a user reporting jackd dieing on such hardware with an rme
digi96/8 pad. It happens to be sharing and IRQ between these things:

 10:   38948682          0          0          0          XT-PIC
 libata, RME96, uhci_hcd:usb1, eth0

Haven't had a chance to get physical access to the box, yet, to do some
thorough sorting of the issue. But, just wondered if this might in
anyway be a possible source of problems.

-- 
Eric Dantan Rzewnicki
Apprentice Linux Audio Developer and Mostly Harmless Sysadmin
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