In this guide I will explain best practise regarding performance in MySQL, PHP and of course our loved Yii Framework. Since this is a complex topic, I will start with some basics and then expand this guide from time to time. Since this wiki can become big, you may click on View history - there you can see what changes have been made, so you don't miss anything.
Previously there was described a way to build an application with front-end and back-end. I would like to continue this theme and suggest another way to organize directories using WebApplicationEnd behavior.