[linux-audio-user] IRQ settings and low latency

Mark Knecht markknecht at comcast.net
Mon Mar 15 11:29:33 EST 2004


On Mon, 2004-03-15 at 07:06, Greg Jednaszewski wrote:
> Hi,
> 
> On Sat, Mar 13, 2004 at 08:41:20AM -0800, Mark Knecht wrote:
> > The first column is the hex version of what's in the /cat
> > /proc/interrupts table, and the last column is the vector associated
> > with that interrupt. The priority, as I understand it, is driven by the
> > highest vector number. In the table above vector 'D1' is highest, so you
> > look back at it's IRQ number (16 hex) convert it to decimal (22) and
> > look it up in the /proc/interrupts table and find that in this machine
> > the VIA8233 has the highest priority, followed by USB, then the ICE1712,
> > the radeon, and so on.
> 
> Ah, ok.  This makes sense.  I had found some references to the vector
> table, but nothing complete enough for me to figure out what was going
> on.  Thanks for the explanation.
> 
> Thanks,
> Greg

Greg,
   Glad to help. If you (or anyone else) finds any information on how to
control the vector table setting, please post back here and let us know.

Thanks,
Mark



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