Freebsd IP Forwarding performance (question, and some info) [7-stable, current, em, smp]

[Adrian Chadd]

2008/7/1 Sepherosa Ziehau <sepherosa at gmail.com>:


> Properly configured #RX desc and timer intr interval will be required
> to make sure that the RX desc collection could keep up with the
> hardware speed.  I used pure timer intr (8000Hz) on nfe(4) in dfly w/
> good result, i.e. TX/RX @linespeed without livelocking the system.
> The drawback of pure timer intr is that you waste extra cpu power,
> when there is nothing to process.

What packet rate is "linespeed" ? With what size packets?



arian