Teaching can be difficult, with a lot of information to convey, whether learning systems target limited or large subject areas. Effective eLearning methodologies must take into account how people learn, not just content and skills.
To keep pace with the consumer, and remain ahead of the competition, you no longer can rely on a CMS that is tied to a proprietary vendor's feature roadmap, rather than your immediate business requirements.
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.