|
Crispin,
Correct, since RPG III doesn't support integers, I had no choice but to use packed.
Still, since integers are faster, I would have expected the RPG IV to be a little faster for that
reason alone.
Charles Wilt
--
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307
wiltc@xxxxxxxxxx
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Crispin Bates
Sent: Thursday, July 24, 2008 1:33 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: RPG III program calls faster than RPG IV????
Charles,
You're using an integer for the RPGIV loop, yet a Packed field for the
RPGIII Loop. I think we've already determined the problem with Packed
fields
vs. Integers...
Crispin.
----- Original Message -----
From: "Wilt, Charles" <WiltC@xxxxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Thursday, July 24, 2008 1:02 PM
Subject: RE: RPG III program calls faster than RPG IV????
> Geezz...here you go....again <grin>
>
> Originally the call was prototyped. But I tried a non-prototyped call
> also to see if there was a
> difference.
>
> I also moved from a FOR loop to a DO loop like the RPG III.....
>
> * Begin OPMPGM1
> I 50000000 C NBRLPS
> I 'OPMPGM2' C PGM
> C 1 DO NBRLPS IDX 100
> C CALL PGM
> C ENDDO
> C MOVE *ON *INLR
> C RETRN
>
> * Begin OPMPGM2
> C RETRN
>
>
> //Begin DYNPGMCALL
> h dftactgrp(*YES)
> d i s 10i 0
>
> c 1 do 50000000 i
> c call 'CALLEDPGM'
> c enddo
> c eval *inlr = *on
> c return
>
> //begin CALLEDPGM
> h dftactgrp(*YES)
> c return
>
>
>
> Charles Wilt
> --
> Software Engineer
> CINTAS Corporation - IT 92B
> 513.701.1307
>
> wiltc@xxxxxxxxxx
>
>
>> -----Original Message-----
>> From: rpg400-l-bounces@xxxxxxxxxxxx
>> [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
>> On Behalf Of Crispin Bates
>> Sent: Thursday, July 24, 2008 10:54 AM
>> To: RPG programming on the AS400 / iSeries
>> Subject: Re: RPG III program calls faster than RPG IV????
>>
>> Do you want to share the code?
>>
>> ----- Original Message -----
>> From: "Wilt, Charles" <WiltC@xxxxxxxxxx>
>> To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
>> Sent: Thursday, July 24, 2008 10:22 AM
>> Subject: RPG III program calls faster than RPG IV????
>>
>>
>> All,
>>
>> I was doing some benchmarking on an unused 515 running v5r4, and I'm
>> seeing
>> some results that
>> surprised me...
>>
>> 5M 50M
>> OPM calling OPM 6s 62s
>> Dynamic Program Call 12s 122s
>> Bound Procedure 1s 4s
>>
>> --In the first case, an RPG III *PGM was calling another RPG III *PGM
>> (which
>> returned with LR =
>> *OFF).
>> --In the second case, an RPG IV *PGM was calling another RPG IV *PGM
>> (which
>> returned with LR = *OFF).
>> --In the third, an RPG IV *PGM was calling a RPG IV procedure in a
>> *SRVPGM.
>>
>> Both of the called programs and the called procedure simply RETURN.
>>
>>
>> I'm a little surprise to see RPG III program calls performing better
than
>> RPG IV program calls. I
>> thought perhaps it was activation group related. Initially, I had *NEW
>> calling *CALLER. I tried
>> changing both program to run in the same named activation group. That
had
>> no
>> effect. So I tried
>> changing both to DFTACTGRP(*YES). That had a little effect, lowering
the
>> times to 11s and 110s.
>>
>> Does anybody have a explanation?
>>
>>
>> Charles Wilt
>> --
>> Software Engineer
>> CINTAS Corporation - IT 92B
>> 513.701.1307
>> wiltc@xxxxxxxxxx
>>
>>
>>
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