If most of the runtime of a rexx is executing host commands (TSO commands etc.) 
then a compilation will benefit only a little.
But if the time spending at executing only rexxcode is significant You will 
gain significant performance gains.
For intensive use of rexxcode You can often run the same code 5 times faster 
compiled.

Note that if You is calling an external subroutine from a compiled rexx You 
better INCLUDE that subroutine in the main loadmodule.
Otherwise will the subroutine be loaded from STEPLIB at every call to it.  
(Imagine calling the subroutine for ever record on a file...)

_______________________________________________________________
Thomas Berg   IT Utveckling   FöreningsSparbanken AB (Publ) / SWEDBANK     


> -----Ursprungligt meddelande-----
> Från: IBM Mainframe Discussion List 
> [mailto:[EMAIL PROTECTED] För Jan Vanbrabant
> Skickat: den 10 maj 2006 09:27
> Till: IBM-MAIN@BAMA.UA.EDU
> Ämne: gains with compiled REXX
> 
> 
> Hi,
> 
> Performance/time gains with compiled REXX?
> The answer is 'it depends' of course.
> 
> But any experiences to share?
> Have benchmarks been done at your knowledge?
> Is there some material available about which areas 
> compilation can add value?
> 
> Jan
> 
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