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DateSat, 6 Mar 2004 09:55:09 -0500 (EST)
FromRon Peterson <>
SubjectRe: network / performance problems
On Thu, 4 Mar 2004, Ron Peterson wrote:

> ... thought I'd report that I installed 2.4.21 on a single processor
> about a week ago (1GHz PIII, 500MB, Intel 82820 (ICH2) Chipset w/
> eepro100 module), and am seeing the same bad behaviour.

I've booted with kernel profiling turned on.  I've posted some preliminary
results.  I don't have profile data yet, but you can see in the following
that when I turn off my iptables rules, the ping latency graph flattens
out.

http://depot.mtholyoke.edu:8080/tmp/tap-sam/2004-03-06_9:30/sam_last_108000.png
http://depot.mtholyoke.edu:8080/tmp/tap-sam/

My understanding is that the kernel profile information will become
interesting when the machine starts thrashing.  If it would be useful for
me to dump anything before then, let me know.

_________________________
Ron Peterson
Network & Systems Manager
Mount Holyoke College
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