Tuning Apache and PHP

On this thread o drupal.org some very good links to articles regarding tuning PHP and Apache (and IIS).

For example an article on how to optimize your PHP code and configurations. Here you can find some more thoughts about how gzipping webserver pages (both IIS and Apache) work. And this last excellent PDF is very lenghty but has some good points on why /not/ to use mod_gzipping or Zipping of pages in general. If you ever wanted to know anything about why and how to optimze, please read the articles in these links.