Re: [PHP] Re: speeding up PHP

[Galen]

Yes, compression is key. Faster servers with HUGE internet connections 
serving COMPRESSED content make sites feel snappy. Look under 
microtime() in the php manual for an example that will benchmark how 
much time your page actually takes to produce... you'll probably find 
it incredibly small... like 0.02 seconds or something if it's a decent 
shared host like mine. The rest is compression (reduces data transfer), 
page complexity (simpler HTML shows up faster, fewer images make the 
page load faster), and internet latency/bandwidth (fast, fat pipes are 
way better than a site hosted off DSL - latency in packet delievery 
alone could cost 1/2 second in some situations).

So before you look into PHP accelerators, benchmark your code. It's not 
likely your PHP, it's more likely your too complex HTML and/or no 
compression and/or a slow (either bandwidth or latency) internet 
connection.

Even 1/4 second script parsing feels peppy with a big, low-latency 
pipe, simple HTML formatting, and on-the-fly compression. Just look at 
Google.

-Galen

On Feb 10, 2004, at 5:46 AM, Manuel Lemos wrote:

Hello,

On 02/09/2004 11:36 PM, Merlin wrote:
I do have a performance question regarding php processing. There are 
some sites on the net like google, heise and others which are 
incredible fast in response time. Of course companies like google are 
running totally other systems, but there are smaller sites and 
companies doing almost the same verry fast page delivery.
Now I am wondering how this is possible on a LAMP application. My 
site is not slow, but also not fast. I was reading about php 
accellerator. Can anybody recommend this tool, is it complicated to 
install and configure? Are there any speed gains and are ther tools 
to messure the page delivery times?
Most details about Google and other sites speed do not have much to do 
the actual code that generates the pages. For instance, they use 
distributed data centers and DNS around the world to make the servers 
that you actually access be closer to you and start serving pages 
sooner.

They also use compressed pages to reduce the actual size of the 
information that is transferred. You can use compression of pages in 
PHP too, but in my experience it is much simpler to use a module of 
your Web server that does that job transparently, like for instance 
mod_gzip for Apache.

Search engines also do not use SQL databases. Usually they just lookup 
static indexes to speedup lookup.

Sites like Google also avoid using many images. Images can make a site 
look nicer but they are often irrelevant and retard the site loading.

--

Regards,
Manuel Lemos
Free ready to use OOP components written in PHP
http://www.phpclasses.org/
Metastorage - Data object relational mapping layer generator
http://www.meta-language.net/metastorage.html
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php


--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php