Bing (program)

bing is a Unix program which is essentially a ping with added network throughput measurements.

From the man page:

      Bing  determines  bandwidth  on  a  point-to-point link by sending ICMP
      ECHO_REQUEST packets and measuring their roundtrip times for  different
      packet sizes on each end of the link.

You must specify two hosts as command line arguments; the results will be presented to you (approximately) every second.

See also