3.System3.0:> ttcp -s -t localhost
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp  -> localhost
ttcp-t: socket
ttcp-t: connect
ttcp-t: 16777216 bytes in 47.50 real seconds = 344.93 KB/sec +++
ttcp-t: 2048 I/O calls, msec/call = 23.75, calls/sec = 43.12
ttcp-t: 0:47real

4.System3.0:> ttcp -s -r
ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001  tcp
ttcp-r: socket
ttcp-r: accept from 127.0.0.1
ttcp-r: 16777216 bytes in 47.55 real seconds = 344.54 KB/sec +++
ttcp-r: 2202 I/O calls, msec/call = 22.11, calls/sec = 46.31
ttcp-r: 0:47real