Eric Thomas <ERIC@FRECP11>
Sat, 21 Mar 1987 18:31 SET
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Consider the following timings:
Do i = 1 to 1000
'EXECIO 1 PUNCH (STRING' t.i
End
--> 2.79 sec
'EXECIO 1000 PUNCH (STEM T.'
--> 2.09 sec, VM/SP 4 only
'CARD PUNCH T STEM A' (where "T STEM A" is a file containing all the T.i)
--> 0.35 sec, but more DASD I/O
The first case is the one presently used. The second case could be
implemented as an alternative method for SP4 systems (ie If cmsrel > 3
Then...) The last case is by far the fastest, works on all systems, but issues
a lot of DASD I/O as a disk file is re-read every time. I *love* EXECIO....
Eric
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