(Was asked to fwd to this list from freebsd-bugs)
 Sorry for the duplicate mail.

I was running some tests and observed rather
strange behaviour. TCP Request/Response tests
showed a drastic fall at response sizes of
8192 bytes. This strange drop was also mirrored
in UDP RR tests. Wondering if this is a known
issue? (Smells like a VM problem). I'm afraid
I cant upgrade and didnt have time to track
down more info, but should be easily reproducible.



Kernel: FreeBSD 4.2
Machines: 500MHz PIII / 333MHz PII (512MB each)
Network: 100Mb Ethernet
Test: netperf tcp_rr 

Request/Response        Transaction Rate
----------------        -----------------
1,1                     5433
1,64                    5061
1,4096                  1067
1,8192                  10
1,32767                 287
1,65536                 96

64,64                   4753
64,4096                 1042
64,8192                 10
64,32768                290
64,65536                92

128,4096                1040
128,8192                10
128,32768               287
128,65536               93

thanks,
Nivedita




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