Re: Which scales better? J2EE, PHP, or CGIDEV2?

Henrik,

Perhaps we are loosing something in the translation (or I am mis-understanding your point).

I was trying to make the point that hardware is what has the major impact on scalability/performance. Software that is running blindingly fast on today's systems would have been considerably slower on older systems.

Regards

Paul Tuohy
ComCon
www.comconadvisor.com www.systemideveloper.com




Henrik RÃtzou wrote:

Paul,

when you first run a stateless environment hot it performs very well ;-)

Just try "the medicine" if the smallest 515 you can by for money - a 1MB
memory machine with one disk

http://85.24.84.163:1550/pextcgi/pxsession.pgm

/henrik

On Wed, Oct 6, 2010 at 10:38 PM, Paul Tuohy <tuohyp@xxxxxxxxxxxxxxxxx>wrote:

Hi Nathan,

I think language efficiency comes well down the list after the hardware
- and I apologize if that was not clear from the article.

It does have an affect but nowhere near the affect it used to have.
Henrik quoted the solution serving 400 web (companies) users - 10 jobs -
running on a 520 (I am assuming RPG). I also get through a fairly heavy
workload on my little 620. But I wonder what kind of response we would
be getting running the same software on an old B20 (if it were possible)?

Performance is of course a consideration. And language can have a large
part to play in that. But I think the application would really dictate
how performance may be affected by the language - e.g. Java gives you
multi threading, RPG gives you better database access, PHP gives you
better session handling etc. etc. - as to which of these is most
important depends on the application.

Language is about the right tool for the job. And the most important
point about that is you have to know the language. No point saying Java
is the right language if you can't program in Java.

Regards

Paul Tuohy
ComCon
www.comconadvisor.com
www.systemideveloper.com





Nathan Andelin wrote:
>> From: Kevin Schroeder

Not correct, IMHO. "Scalability" has virtually nothing to do with the
language.

If that's the case, then why did Facebook transform their PHP scripts to

C, and

compile it? It seems to me that runtime efficiency (performance) is the

first

key to scalability. If your applications require less CPU, then CPU is

less

likely to be a bottleneck. The box will handle more work.

But is there more to scalability, than language efficiency?

-Nathan

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