Choosing Which Apache to Build

Apache 2.x offers Multiprocessing Modules (MPM) that specify how resources are allocated by Apache. This is its main improvement over Apache 1. However, while Apache 2.0 tends to outperform Apache 1.3 using threaded MPMs, such as Worker, Apache 1.3 tends to outperform 2.0 when using the Prefork MPM.

• For the most stable configuration, use Apache 1.3.
  • It may also be important to consider that EasyApache does not provide PHP FastCGI support for Apache 1.3.
• For the most flexible configuration, use Apache 2.0. Apache 2.0 is recommended for most configurations.
• The most notable differences between Apache 2.0 and 2.2 are the MPMs that are available to each, and some changes in configuration directives.