netfilter load sharing

[Thomas Fragstein <thomas@xxxxxxxxxxxx>]

Hi List,

i have two questions.

first: how i can see how many cpu load ist generate by netfilter (iptables)

second: on my linux box i have seen 20-30% of one cpu is using by 
system. it is possible that netfilter can share the load over any cores 
(multicore cpu)

best thanks
Thomas