CALLP vs CALLB vs EXSR

["McCallion, Martin" <MccalliM@xxxxxxxxxxxxxxxx>]

We've just been having a conversation here about the relevant
performance of prototyped and non-prototyped procedures.  It seems that
some of my colleagues did some benchmarking while I was seconded to
another department.

They discovered that, for the same function, processing large volumes of
data, coding subroutines performed significantly faster than procedures;
but also that non-prototyped procedures using CALLB were faster than
prototyped ones using CALLP.

I'm not surprised by the former, but I'm astonished by the latter.  Why
should this be so?

I wasn't involved in the testing, so I can't give you much more info; I
should add, though, that we're at V4R3, and everything would have been
compiled without optimisation.

Cheers,

Martin.

--                                                                     
Martin McCallion                 
Midas-Kapiti International
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