Re: CGI programming

I can easily cite examples just like yours, but I can just as easily cite
examples where that specific claim is simply not true.

With any environment that comes with server overhead (PHP server and/or
Apache) there are many knobs and dials to twist and turn to optimize
performance. I suspect in your case everything was more or less out of the
box, therefore a long way from optimized.

IBM i in it's as shipped form from IBM, will run your application without
modification, albeit not very efficiently (read: slow). Apply some work
management and viola you have a superior system. The same is true with
PHP, Python, Node, etc. etc........

--
Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


On Tue, Nov 27, 2018 at 2:47 PM Raul Jager <raul@xxxxxxxxxx> wrote:

We had a fan of PHP visiting, and we did one program that used a big
SQL, both in RPG and PHP (PHP optimized) Response time was between 25
to 30 times slower in PHP.

Even if is only one program, result is consistent to what we read in
compiler books.

On 11/27/18 2:13 PM, Jon Paris wrote:

I'm a big fan of using RPG for web apps - but my experience is that PHP

while somewhat slower is really not a performance issue. I doubt if it
takes even 1.5X let alone 20X - that's a crazy number. And that's without
doing any real tuning, buying the "boosted" Zend Server, etc. etc.

Where PHP scores is the easy availability of libraries which speeds up

development significantly. Same applies to Python and node and ...

Courtesy of PHP we have had new functionality available in hours rather

than the days or weeks it would have taken had we had to do it with RPG.
Sometimes trading off performance for speed and nimbleness of development
is the right trade to make.

Right tool - right job.


Jon Paris

www.partner400.com
www.SystemiDeveloper.com

On Nov 27, 2018, at 10:07 AM, Raul Jager <raul@xxxxxxxxxx> wrote:

You are leaving a lot of margin. Using PHP will probably require 20 or
more cores to put up with the performance of 1 core ILE

On 11/27/18 10:53 AM, JRusling@xxxxxxxxxxx <mailto:JRusling@xxxxxxxxxxx>

wrote:

Helloooo IBM . . . . Here is the script for your next advertisement
campaign. :--)
(imho)

John

<snip>
Our products use ILE languages to implement web interfaces, mostly for
performance reasons. Our competitors recommend and require 10 times

more

CPU cores for their products, than we do.
</snip>
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