Today I am going to share an interesting article with you all. Although we all know, Facebook, the most used social network with over 1.3 billion active users worldwide, as of June 2014, is built on PHP. PHP is the most common scripting language for server side web development. So the problem in scripting language in general is their performance. They are easy to learn, easy to use, feature rich, but lack in performance. Below is the set of different languages for it’s performance against the CPU timing. Therefore, this performance issue creates lots of implications for facebook. Bad performance can limit a lot of features for users, and requires lots of resources. So that raises a question for facebook….