Check website performance with Zend server CE benchmark tool.

 Test server is running in local network.
Server hardware and software.
Cpu : Mobile Amd Sempron 2800+ 1.6 GHz
HDD: 4200 rpm
RAM : 1 Gb
 OS: Centos 5.6
Zend server CE
Apache 2.2.3
Php 5.3.5
Mysql  5.0.77
Page 1 - php, Zend library with 46 MySQL queries (no slow queries). 215.2 Kb
Page 2 - php, Zend library with 254 MySQL queries (some slow queries). 574.5 Kb

Test website pages with optimizer + on and data cache on

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Test website pages with optimizer + off and data cache on

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Test website pages with optimizer + on and data cache off

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Test website pages with optimizer + off and data cache off

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Test website pages with page caching on by php code, Zend optimizer + off and data cache off.

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Test website pages with page caching on by php code, Zend optimizer + on and data cache on.

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