(this is only for HEAD - old docs are found in the git repo)
A Web Server Called Ebb
Ebb aims to be a small and fast web server specifically for hosting dynamic Ruby language web applications.
It is a binding to libebb
Install
The Ruby binding is available as a Ruby Gem. It can be install by executing
gem install ebb
If you want SSL support you must install GnuTLS. Ebb has no other dependencies.
Running
Use Ebb.start_server()
Speed
(these stats are out of date)
Because Ebb handles most of the processing in C, it is able to do work often times more efficiently than other Ruby language web servers.

Ebb-Ruby can handle threaded processing better than the other 'evented' servers. This won't be of any benefit to Rails applications because Rails places a lock around each request that wouldn't allow concurrent processing anyway. In Merb, for example, Ebb's thread handling will allow Ebb instances to handle larger loads. More
Contributions
Contributions (patches, criticism, advice) are very welcome! Please send all to to the mailing list.
The source code is hosted github. It can be retrieved by executing
git clone git://github.com/ry/ebb.git
(The MIT) License
Copyright (c) 2008 Ryah Dahl (ry at tiny clouds dot org)