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  • Subject: Re: RPG IV Performance
  • From: Phil Groschwitz <sublime78ska@xxxxxxxxx>
  • Date: Fri, 19 Jan 2001 05:50:13 -0800 (PST)

Sounds like he's trying to intimidate you.

Unless you have a machine with 90%+ dasd utilization?




--- Lisa.Abney@universalflavors.com wrote:
> 
> 
> Hi all!  I've just heard some rather negative
> performance things on RPG IV, and
> wonder if anyone can give me some feedback on how
> true this might be.
> 
> We're working with a consulting company who is doing
> some performance analysis
> on some of our programs.  They seem very
> knowledgeable, and I have a lot of
> confidence in what they've done up until now. 
> However, today they were showing
> us a mock-up of a trigger program they want to use. 
> As they explained it, this
> trigger program will be constantly running in the
> background for every user on
> the system to monitor changes to two files, and will
> feed data to a dataque.
> The program they showed me was written in RPGIII,
> and I made my usual request to
> an outside contractor that this be done in RPGIV. 
> His response was "Sure, if
> you want the program size to be 5 - 10 times the
> size of an RPGIII program."
> When I asked him to explain that, he only said that,
> in his experience, this is
> always true, and that it would have a very negative
> performance.  I even
> mentioned removing observability (not that I really
> understand what that means,
> but I just read something the other day about that
> being a way to reduce program
> size!), and he said that might move it down to 3 - 5
> times the size of an
> equivalent RPGIII program.  The program will only be
> about 50 - 100 lines of
> code.
> 
> Can someone explain if this is true, and, if so,
> why?  And, if true, what does
> this really mean from a performance standpoint?
> 
> 
> 
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