network stack latencies

From: Ruppert Koch (ruppert_at_rcsc.de)
Date: 11/25/04 

Date: 25 Nov 2004 09:29:49 -0800

Hi all,

does someone know approximately how many clock cycles it typically
takes to traverse the Linux 2.4 or 2.6 UPD/IP/ethernet driver and
TCP/IP/ethernet driver stacks when sending and receiving a packet
(let's say 100 bytes of payload)? I'm interested in the load of the
CPU in these cases and don't care about the time the packet is with
the NIC. Let's assume a modern NIC that does the checksum calculation
on card.

Thanks a lot,
Ruppert