I\'ve recently found that some people prefer using unicorn_rails
instead of the default WEBrick as a web server for developing Rails applications.
I unders
My personal experience is that WEBrick is faster in my development environment than Unicorn and Thin (OS X) in a pretty big Rails app (lots of gems, routes etc). But you should measure it yourself, with your app in your machine to see (I tested using ab and using Chrome's developer tools).
However using the same server in production and development is a very good idea.