
  ttiimmee -- rruunnss aa ccoommmmaanndd aanndd rreettuurrnnss tthhee ttiimmee eellaappsseedd

  UUSSAAGGEE

        time <command> [-iterations <iterations>]

  DDEESSCCRRIIPPTTIIOONN

  This is similar but not identical to the standard Tcl time procedure. It
  will run the specified command for certain number of iterations and return
  the time elapsed. The default number of iterations is 1. Unlike the Tcl
  procedure, the time reported is the total for all iterations, not the time
  per iteration.

  Four time values are reported. active is the time elapsed while the process
  was being executed and when the system was executing on behalf of the
  process. user and system break this down into the two components. real is
  the real time elapsed. All times are in seconds.

  EEXXAAMMPPLLEESS

  To time 10 iterations of the train command (each doing 200 updates):

        lens> time {train 200} -i 10
        ...
        0.720 active  0.620 user  0.100 system  2.740 real

  ---------------------------------------------------------------------------
    Last modified: Mon Mar 1 18:30:18 EST 1999

