slow pages passed by PHP interpreter via locale network

[Skrol29]

Hello,

In order to encircle a problem of performance we have with our PHP
scripts, we were brought the make the following test. We take a
standard HTML page of our site, and we make a copy of this file but
renaming it with the PHP extension. This way, those two HTML and PHP
files have exactly the same content which is entirely HTML without any
PHP tags, neither PHP commands.

The we benched the time for displaying those pages (using FireFox):
Source HTML + extension HTML + called from Locale Machine =0,5 sec
Source HTML + extension PHP + called from Locale Machine =0,5 sec
Source HTML + extension HTML + called from Local Network =0,5 sec
Source HTML + extension PHP + called from Local Network =4 sec (!!)

All Calls are made with the same URL in http://....
This behavior is the same on several client PC we've tested in our
Local Network.

The server is Win2000 + Pentium III-800 + 256 Mb Ram. Apache 2.0.55 +
PHP 5.1.6 are manually installed and running, the server has no other
specific software. There is no anti-virus, no fire-wall.

Do you have an idea of what can cause pages passed by the PHP
interpreter to be dramatically slowed down only when they are called
via the locale network ?

------------
Skrol 29
------------

[Andy Hassall]

On 6 Sep 2006 03:13:39 -0700, "Skrol29" <sk*****@freesurf.frwrote:

>In order to encircle a problem of performance we have with our PHP
scripts, we were brought the make the following test. We take a
standard HTML page of our site, and we make a copy of this file but
renaming it with the PHP extension. This way, those two HTML and PHP
files have exactly the same content which is entirely HTML without any
PHP tags, neither PHP commands.

The we benched the time for displaying those pages (using FireFox):
Source HTML + extension HTML + called from Locale Machine =0,5 sec
Source HTML + extension PHP + called from Locale Machine =0,5 sec
Source HTML + extension HTML + called from Local Network =0,5 sec
Source HTML + extension PHP + called from Local Network =4 sec (!!)

All Calls are made with the same URL in http://....
This behavior is the same on several client PC we've tested in our
Local Network.

The server is Win2000 + Pentium III-800 + 256 Mb Ram. Apache 2.0.55 +
PHP 5.1.6 are manually installed and running, the server has no other
specific software. There is no anti-virus, no fire-wall.

Do you have an idea of what can cause pages passed by the PHP
interpreter to be dramatically slowed down only when they are called
via the locale network ?

A wild guess; do you have compression enabled for static pages (e.g. on Apache
that'd be mod_deflate), but not enabled for PHP (e.g. using
zlib.output_compression)?

How big is the page, and how fast is the network? If the page is small and the
network fast, then this probably isn't the issue.

--
Andy Hassall :: an**@andyh.co.uk :: http://www.andyh.co.uk
http://www.andyhsoftware.co.uk/space :: disk and FTP usage analysis tool

[Alvaro G. Vicario]

*** Skrol29 escribió/wrote (6 Sep 2006 03:13:39 -0700):

The server is Win2000 + Pentium III-800 + 256 Mb Ram. Apache 2.0.55 +
PHP 5.1.6 are manually installed and running, the server has no other
specific software. There is no anti-virus, no fire-wall.

Apache has some proxy modules that may be enabled by default. Check for
lines like these in your httpd.conf file:

LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so

I've learnt that these modules sometimes behave... weird.
You can also install Ethereal and capture the packets at both server and
client.

--
-+ http://alvaro.es - Álvaro G. Vicario - Burgos, Spain
++ Mi sitio sobre programación web: http://bits.demogracia.com
+- Mi web de humor con rayos UVA: http://www.demogracia.com
--

[Chung Leong]

Skrol29 wrote:

Hello,

In order to encircle a problem of performance we have with our PHP
scripts, we were brought the make the following test. We take a
standard HTML page of our site, and we make a copy of this file but
renaming it with the PHP extension. This way, those two HTML and PHP
files have exactly the same content which is entirely HTML without any
PHP tags, neither PHP commands.

The we benched the time for displaying those pages (using FireFox):
Source HTML + extension HTML + called from Locale Machine =0,5 sec
Source HTML + extension PHP + called from Locale Machine =0,5 sec
Source HTML + extension HTML + called from Local Network =0,5 sec
Source HTML + extension PHP + called from Local Network =4 sec (!!)

All Calls are made with the same URL in http://....
This behavior is the same on several client PC we've tested in our
Local Network.

The server is Win2000 + Pentium III-800 + 256 Mb Ram. Apache 2.0.55 +
PHP 5.1.6 are manually installed and running, the server has no other
specific software. There is no anti-virus, no fire-wall.

Do you have an idea of what can cause pages passed by the PHP
interpreter to be dramatically slowed down only when they are called
via the locale network ?

------------
Skrol 29
------------

What if the page is blank?