On Solaris I get the following errors
$ iperf -s -w 64K
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Server listening on TCP port 5001
TCP window size: 64.4 KByte (WARNING: requested 64.0 KByte)
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With the warning, I don't think it properly sets the window size because performance is below expectations (less than running the same test between two windows machines).
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Also, I ma seeing performance issues with running multiple iperf sessions on one machine. I need to start traffic from one machine going out to 150 different machines. Once I get past about 40 iperf clients on the Sun server, the machine get very slow. Each iperf sessions is using about 2.3% of the CPU. Is there something I can do to help this(besides adding more endpoints which I am going to do).
This is while using iperf in UDP mode, streaming 64 byte packets at about 200K per client.
Thanks
Paul