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Time a function: Difference between revisions
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<br>there is a way to easily query the host (VM/CP) to indicate how much CPU time was used by your userID.
<br>The result can be placed into a REXX varible (as an option).
<lang rexx>/*REXX program to show the elapsed time for a function (subroutine).
call time 'E'
call silly
say 'function SILLY took' format(time("E"),,2) 'seconds.'
/* │ */
/* ┌────────────────┘ */
/*
/* with 2 decimal digits (past the decimal point). Using */
/* a 0 (zero) would round the time to whole seconds. */
exit
/*──────────────────────────────────SILLY subroutine────────────────────*/
silly: procedure /*
do j=1 for 100000
a.j=random() date() time() digits() fuzz() form() xrange() queued()
end
return</lang>
'''output''' (when using a computer built in the 20th century:
<pre>
function SILLY took 3.54 seconds.
</pre>
'''output''' (when using a computer built in the 21st century:
<pre>
function SILLY took 0.44 seconds.
</pre>
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