Optimizing Drupal Performance

This paper presents the results of performance benchmarks for comparing several common PHP runtime environments and configurations. The application used for benchmarking is Drupal, the open source social publishing platform. Tested runtime environments included plain PHP, Zend Server (www.zend.com/products/server), and opensource optimizers, such as APC and WinCache.
For the purpose of this benchmark, a simple Drupal-based website was set up and tested in various commonly
used Windows and Linux configurations.