In message <19990217133007.D26495@lyssa.owl.de>, Matthias Scheler writes:
>I suggest you try running "ttcp -r -s" on one and "ttcp -t -s first-machine"
>on the other machine and post the results. I would really like to see
>your numbers.

Here are some numbers between two NetBSD/i386 1.3.3 systems on a
non-idle shared 100Mb hub.  Q is a P166 with a Pro/100B (82557) and
amber is a P133 with a Pro/100+ (82558).

msanders@amber:/usr/pkgsrc/net/ttcp % ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp
ttcp-r: socket
ttcp-r: accept from 209.63.19.136
ttcp-r: 16777216 bytes in 3.18 real seconds = 5146.96 KB/sec +++
ttcp-r: 10462 I/O calls, msec/call = 0.31, calls/sec = 3286.59
ttcp-r: 0.0user 1.0sys 0:03real 32% 0i+0d 0maxrss 0+0pf 8723+256csw

msanders@q:/usr/pkgsrc/net/ttcp % /usr/pkg/bin/ttcp -t -s amber
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp  ->
amber
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 3.17 real seconds = 5163.65 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 1.59, calls/sec = 645.46
ttcp-t: 0.0user 3.0sys 0:03real 96% 0i+0d 0maxrss 0+0pf 10+48csw

msanders@q:/usr/pkgsrc/net/ttcp % /usr/pkg/bin/ttcp -r -s
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp
ttcp-r: socket
ttcp-r: accept from 209.63.19.9
ttcp-r: 16777216 bytes in 2.42 real seconds = 6762.23 KB/sec +++
ttcp-r: 2192 I/O calls, msec/call = 1.13, calls/sec = 904.71
ttcp-r: 0.0user 2.1sys 0:02real 86% 0i+0d 0maxrss 0+0pf 198+37csw

msanders@amber:/usr/pkgsrc/net/ttcp % ttcp -t -s q
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp  -> q
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 2.42 real seconds = 6757.06 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 1.21, calls/sec = 844.63
ttcp-t: 0.0user 1.8sys 0:02real 76% 0i+0d 0maxrss 0+0pf 648+167csw