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  • Subject: RE: Websphere: a resource hog?
  • From: "Nathan M. Andelin" <nathanma@xxxxxxxxx>
  • Date: Thu, 24 May 2001 21:50:45 -0600

> From: "Joe Pluta" <joepluta@PlutaBrothers.com>

> I guess the moral of the story is that anybody who is getting less than
> subsecond response time on their web pages, regardless of the
architecture,
> should be looking at the application, not the web server, for the
> bottleneck.

That's true.  It has surprised me to hear a number of people say that they
thought the OS/400 HTTP server might be a bottleneck.  But when you start
doing timings, the performance problem lies either in the backend
application, or the application architecture.

> If what you are saying is that Java is slower than native RPG, then I
think
> we all agree.

IBM's has been emphasizing how the performance gap between Java and RPG is
getting slimmer.  So, we RPG enthusiasts may get carried away and emphasize
any advantage.  The important thing is that whatever architecture you
choose, it needs to produce applications that are functional and
maintainable.  And it needs to enhance programmer productivity.  That's my
focus, and aparently your's too.

> However, the Java solution has benefits the RPG solution does
> not, at least if the Java is designed correctly.  What's going to be
> interesting over the next month or so is to see how many ways I am able to
> leverage what I've written.  For example, I can use these same classes to
> output XML.  Have you added that capability to your classes yet?

You seem to be going in a completely different direction than I, by creating
components to generate formatted output (HTML, XML, etc.).  The direction I
took was to leave the format of the output entirely to the HTML or XML
author.  I just want to efficiently insert application data into a formatted
template, and send the result to the client.

Nathan.


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