Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : Your eAccelator experience?

[ResellerPlanet]

Today I installed eAccelerator on one of my servers. It's a cPanel server with Zend Optimizer already installed (required for Zend Encoded scripts).

Before I installed the eAccelerator extension I ran a PHP benchmark script:
http://www.free-webhosts.com/php-benchmark-script.php

Before the installation I had an average result of 54ms.
After the installation I had an average result of 72ms.

That's when I was confused... So I removed the extension end ran the test again, and yep: 54ms again. Made me think: isn't eAccelerator supposed to speed up my scripts by caching opcode?

Does anyone have any good or bad experience with eAccelerator? Or maybe I'm not using the right benchmarking script?

I'm running PHP 5.2.1 with Zend Engine v2.2.0, Zend Extension Manager v1.2.0 and Zend Optimizer v3.2.4, and I installed eAccelerator 0.9.5.

[juangake]

Did you checked that it was correctly installed? I mean # php -v or using "phpinfo()" function

[ResellerPlanet]

Yes I checked both php -v (for CLI) and the phpinfo() function.

[timdorr]

First, eA only affects the actual compilation of the script, not it's execution. So, a script designed to test the speed of PHP won't be effective at showing off it's speed. Something large with a lot of code, such as IPB, will more effectively show it off, since it's caching thousands of lines of code.

Secondly, that script runs way too quickly to be statistically significant. It should last at least a few seconds. Your accuracy level is far too low when dealing with numbers that small.

Finally, remember that execution time is measured inside the script itself here. So, the execution time is measured *after* the script has already been compiled. It will only affect the time if it has a bunch of include()'s in there that require a subsequent compilation step during the runtime. Again, this is why large scripts shine with eA.

Instead, run it from the command line like so:
time php php-benchmark-script.php

The time command tracks the execution time of any application. Be sure to run it twice in a row rapidly to ensure you're getting the full effect of caching.

[ResellerPlanet]

Thanks for the tip, I'll use the "time" command with Modernbill or vBulletin.