CodeIgniter vs. Padrino vs. Tornado

CodeIgniter is a proven, agile & open PHP web application framework with a small footprint. It is powering the next generation of web apps.

Padrino is a ruby framework built upon the excellent Sinatra Microframework. Padrino was created to make it fun and easy to code more advanced web applications while still adhering to the spirit that makes Sinatra great!

By using non-blocking network I/O, Tornado can scale to tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user.