I have a system that is running a program that receives and sends 
atmospheric data via TCP.  Most of the data is either in little packets 
(between 64 and 127 bytes) and large packets (between 1024 and 1517).  I 
am running this on a dual Xeon box (Tyan S2721-533 motherboard) with 2 
GB of memory and a Intel gigabit ethernet (82546EB).  I have been 
running this under 2.6.7.  When I switch to 2.6.9 on the same hardware, 
my network throughtput is cut by more than half.  All I can tell from 
looking at "netstat -s" is that my TCP resets are orders of magnitude 
higher under 2.6.9 than 2.6.7.  Enclosed is my 2.6.7 and 2.6.9 config 
files.  Anyone have any ideas where I should look to find the problem?