28 lines
2.2 KiB
Rexx
28 lines
2.2 KiB
Rexx
/*REXX program displays the elapsed time for a REXX function (or subroutine). */
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arg reps . /*obtain an optional argument from C.L.*/
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if reps=='' then reps=100000 /*Not specified? No, then use default.*/
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call time 'Reset' /*only the 1st character is examined. */
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junk = silly(reps) /*invoke the SILLY function (below). */
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/*───► CALL SILLY REPS also works.*/
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/* The E is for elapsed time.*/
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/* │ ─ */
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/* ┌────◄───┘ */
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/* │ */
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/* ↓ */
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say 'function SILLY took' format(time("E"),,2) 'seconds for' reps "iterations."
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/* ↑ */
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/* │ */
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/* ┌────────►───────┘ */
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/* │ */
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/* The above 2 for the FORMAT function displays the time with*/
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/* two decimal digits (rounded) past the decimal point). Using */
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/* a 0 (zero) would round the time to whole seconds. */
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exit /*stick a fork in it, we're all done. */
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/*────────────────────────────────────────────────────────────────────────────*/
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silly: procedure /*chew up some CPU time doing some silly stuff.*/
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do j=1 for arg(1) /*wash, apply, lather, rinse, repeat. ··· */
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@.j=random() date() time() digits() fuzz() form() xrange() queued()
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end /*j*/
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return j-1
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