Interesting developments today in the scalable real time web front. In a rather unexpected move, Facebook has released a project called Tornado -- an open source version of the scalable, non-blocking web server and and tools that power FriendFeed.

In a blog post from Facebook Director of Products, Bret Taylor he describes the project in three parts.

• All the basic site building blocks - Tornado comes with built-in support for a lot of the most difficult and tedious aspects of web development, including templates, signed cookies, user authentication, localization, aggressive static file caching, cross-site request forgery protection, and third party authentication like Facebook Connect. You only need to use the features you want, and it is easy to mix and match Tornado with other frameworks.

• Real-time services - Tornado supports large numbers of concurrent connections. It is easy to write real-time services via long polling or HTTP streaming with Tornado. Every active user of FriendFeed maintains an open connection to FriendFeed's servers.

• High performance - Tornado is pretty fast relative to most Python web frameworks. We ran some simple load tests against some other popular Python frameworks, and Tornado's baseline throughput was over four times higher than the other frameworks:

Very cool. Check out the announcement on the Facebook Developer Blog or you can download Tornado at tornadoweb.org.