ntwrkd wrote:
Does anyone have some methods for doing diagnostic / performance
profiling while using NFS over TCP?
Using tcpdump with tcptrace is really handy.
You do something like:
tcpdump -s 100 -w /tmp/tcpdump.out host <hostname>
tcptrace -Sl /tmp/tcpdump.out
xplot /tmp/a2b_tsg.xpl
One very important thing to remember, if you are interested in how the
tcp window is scaling, is to start tcpdump before you mount the server.
The tcp window size depends on a scaling factor that it gets when the
tcp connection is created (which is at mount time).
Dean
Thanks in advance,
Matthew Sacks
matthewsacks.com
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