Think Bar (Pub in England)
How many customers can you serve in any given hour and how you can improve
the number of customers served?
If a Russian speaker orders a beer it should be served in the same amount of
time as an English speaker ordering a beer (unless there is a need for a
translator), so it's not really anything to do with language (Maybe)?
Perhaps it's the number of bar staff working on the bar?, the distance they
have to travel to pickup and serve drinks?, the time it takes them to do
this? And what happens if a bus load of tourists turns up unexpectedly?
Scalability is a worldwide problem not confined to IT :-)
Believe me...
Maurice O'Prey
-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On
Behalf Of Paul Tuohy
Sent: 06 October 2010 20:25
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] Which scales better? J2EE, PHP, or CGIDEV2?
Nathan,
Just to complete the quote and put it in full context...
"The issue here is how to identify high, medium, and low, and I'm afraid
there is no easy answer to that. It all depends on what the application
is doing.
Hardware also has a large say in the proceedings. An application running
on a Power 7 machine runs faster than the same application running on
Power 5.
So, unless you have specific application knowledge that would lead you
in one direction or another, I would let ease of maintenance and
development be your guide."
The language relevance has more to do with an application distributed
over multiple servers (which is what you usually have with "high") and,
apparently, J2EE play a bit better in that world than PHP or RPG.
FWIW my own personal preferences are PHP and RPG - simply from the point
of view of ease of maintenance.
Regards
Paul Tuohy
ComCon
www.comconadvisor.com
www.systemideveloper.com
Nathan Andelin wrote:
Quoted from Get Thee to the Web, Part 3 by Paul Tuohy:
"Scalability relates to how many people will be accessing your application
at
the same time, and how well your application can handle the workload
without
detrimental response times. Usually, you would use Java for high usage,
PHP for
medium, and CGIDEV2 for below medium."
http://www.itjungle.com/fhg/fhg092210-story01.html
What makes people THINK that J2EE scales better than PHP, and PHP scales
better
than CGIDEV2? Is that thinking correct?
-Nathan
midrange.com
