Maximum NIC interrupts

Jordi Espasa Clofent jordi.espasa at
Wed Dec 26 02:12:38 PST 2007

OK, I'll try to explain in another way.

While I've done network performance test I've monitored the IRQ rate, 
and, for example, it's a 7000/8000 interrupts per second in every NIC (I 
use 2 NICs in a bridge). The question is

¿how can I know if this irq rate is too high or not? ¿how can I know if 
I'm closer to device limits, or kernel limits?

I want to say that I'm don't know if 8000 irq per second means a high 
IRQ use or a lower user.

I hope I've explained better at this time.

Jordi Espasa Clofent

More information about the freebsd-net mailing list