WordNet (r) 3.0 (2006):

throughput
    n 1: output relative to input; the amount passing through a
         system from input to output (especially of a computer
         program over a period of time)

The Free On-line Dictionary of Computing (30 December 2018):

throughput

   1. The rate at which a processor can work expressed in
   instructions per second or jobs per hour or some other unit of
   performance.

   2.  data transfer rate.

   (2001-05-22)