our server features:
Server Type: Linux
type hosting: VPS
Web Server: Apache v2.2.17 (cgi-fcgi)
PHP version: 5.2.14
MySQL Version: 5.0.91-community
Zend Engine v2.2.0
Zend Optimizer v3.3.9 and the ionCube PHP Loader v3.3.20
always we had problem of
this command: [php] <defunct> it take much from cpu and server end by error 500
are this because Zend Optimizer and the ionCube PHP Loader installed on the server on the same time?
If you are using cPanel be warned that EasyApache wont include Zend when you upgrapde to PHP 5.3.x. Zend took like a couple years to have a working Zend optimizer option for php 5.3, and even then it has to be manually installed and it breaks any scripts compiled before 5.3, which need to be re-encoded.
If you have software available for both platforms I'd say go for Ioncube anytime, zend support is horrible.