Re: What About Price vs. Performance?

On an intranet, I get subsecond response time on my green-screen revitalization 
applications and on my client/server applications, until I hit about 25-30KB of 
HTML (which is obviously far more than the 2KB of a green screen).  I'll be 
doing some CPU timings, but subsecond ain't bad.

Joe

----------- Original Message ----------------------------------
From: "Nathan M. Andelin" <nathanma@haaga.com>
Reply-To: MIDRANGE-L@midrange.com
Date: Wed, 4 Apr 2001 15:01:16 -0600

>Web applications use a lot of CPU.  If someone says their Web application
offers performance comparable to a 5250 application, they're taking big
liberties with the word "comparable".

In my experience, Web applications use 5 to 40+ times as much CPU time to
produce an HTML page that contains the same data you might find on a 5250
screen.  Even for pages that don't contain images.

It would be interesting to examine the reasons for this observation.  But as
it relates to the issue of price vs. performance the answer is that Web
applications need a machine with a fast CPU that doesn't cost an arm and a
leg.

Is the reason for IBM not putting fast CPUs in the iSeries because they
think it will erode their income from customers who use the machine for
traditional 5250 work?

I've heard similar lamentations from Domino developers.  They like the idea
of server consolidation, but they run into the problem of price vs.
performance.

Comments?

Nathan.


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