time - Time the execution of a script
time script ?count?
This command will call the Tcl interpreter count
times to evaluate script (or once if count isn't
specified). It will then return a string of the form
503 microseconds per iteration
which indicates the average amount of time required per iteration,
Time is measured in elapsed time, not CPU time.
Copyright © 1993 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 1995-1997 Roger E. Critchlow Jr.