RE: [EXTERNAL] Re: CGI programming

80 cores. 80 intel cores, power cores? Is 80 cores spread over a farm of 20 PC's the same as 80 cores spread over X number of power systems?
Which version of PHP? PHP 7 gets much better performance according to Zend compared to PHP 6.

-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxx> On Behalf Of Nathan Andelin
Sent: Tuesday, November 27, 2018 1:14 PM
To: RPG programming on the IBM i (AS/400 and iSeries) <rpg400-l@xxxxxxxxxxxx>
Subject: [EXTERNAL] Re: CGI programming

John,

When people dismiss run-time performance concerns, I always image them working on small-scale development for small-scale organizations. Is that a valid assumption on my part, in regard to your last comment?

We recently developed an IBM i based student transportation system for a public school district that hosts applications and data for 80K students, parents, teachers, administrators, etc. They indicated that their student information system (written in Java, which according to some benchmarks performs better than PHP), requires a server farm of 20 systems, consisting of something like 80 cores. If they were using our system (written in RPG), I'd recommend a single 8-core Power server, which would save them a lot of time that is required to manage their current server farm.

You keep alluding to PHP productivity, which I assume is in regard to the phpGrid utility that you promote. But I wouldn't generally consider PHP to be more productive than RPG, in most coding contexts.

Nathan.



On Tue, Nov 27, 2018 at 10:13 AM Jon Paris <jon.paris@xxxxxxxxxxxxxx> 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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