[Click] userlevel performance

[Roman Chertov]

Hello,

I was curious if anybody could try this test for me using userlevel click.  I am
running CentOS 5.5 2.6.18-194.17.1.el5, and I have two network cards connected
with a single cable.  If I run the script below using userlevel click,
FromDevice(eth3) will receive very few packets and the majority would end up
dropped on input.  

src :: RatedSource(\<00>, LENGTH 1458, RATE 8000, LIMIT 100000)
    -> UDPIPEncap(10.0.1.1, 6667, 20.0.0.2, 6667)
    -> EtherEncap(0x0800, 00:30:48:F9:EA:7B, 00:17:cb:0d:f8:db)
    -> ctr1 :: AverageCounter
    -> ToDevice(eth2);


fd :: FromDevice(eth3, SNIFFER false, PROMISC true)
   -> ctr2 :: AverageCounter
   -> Discard;

This script just requires ethX names to be changed; otherwise, it can be run as
is.

[root]# click test2.click -h ctr1.count -h ctr2.count
ctr1.count:
100000

ctr2.count:
4482

Roman