[asterisk-users] Balancing interrupts.

[Matthew J. Roth]

Steve Edwards wrote:
> Should I be concerned that cpu1 is servicing only 700,000 interrupts 
> from my te410p while cpu3 is servicing almost 90,000,000?
>
> I thought this is what irqbalance was for...
Steve,

It was my experience that irqbalance used smp affinity to bind the 
interrupts from each ethernet device to their own CPU.  This led to 
uneven processor utilization on my Asterisk server, so after some 
research I turned off irqbalance.

If you choose to do so, you'll want to confirm that your kernel has been 
configured to do IRQ balancing.  For more details see:

Asterisk & SMP: Is irqbalance Redundant on 2.6 Kernels? - Resolved 
<http://lists.digium.com/pipermail/asterisk-users/2006-March/146169.html>

Matthew Roth
InterMedia Marketing Solutions
Software Engineer and Systems Developer