Tornado Web Server     Tornado is an open source version of the scalable, non-blocking web server and and tools that power FriendFeed. The FriendFeed application is written using a web framework that looks a bit like web.py or Google's webapp, but with additional tools and optimizations to take advantage of the underlying non-blocking infrastructure.     http://www.tornadoweb.org/     tags: facebook python http apache web Joe Dog Software - Siege Home     http benchmarking load testing     http://www.joedog.org/index/siege-home     tags: ab http