Raindrops is a real-time stats toolkit to show statistics for Rack HTTP
servers.  It is designed for preforking servers such as Rainbows! and
Unicorn, but should support any Rack HTTP server under Ruby 1.9, 1.8 and
Rubinius on platforms supporting POSIX shared memory.  It may also be
used as a generic scoreboard for sharing atomic counters across multiple
processes.

* http://raindrops.bogomips.org/
* raindrops / librelist.com
* git://bogomips.org/raindrops.git

Changes: More Linux extras!

Portable changes:
* Raindrops are now resizable within the limits of system page size
* Raindrops::Middleware proxies +to_path+ in response bodies
* More documentation

Linux-only changes:
* Raindrops::LastDataRecv[1] Rack application
* Raindrops::Watcher[2] Rack application
* Raindrops::TCP_Info[3] class for capturing TCP connection stats
* IPv6 support for inet_diag
* faster inet_diag stats for multiple sockets

There is also a demo server running the Watcher and Middleware
components.  It's capped to 30 concurrent users, so go easy on
it:

Raindrops::Watcher: http://raindrops-demo.bogomips.org/
Raindrops::Middleware: http://raindrops-demo.bogomips.org/_raindrops

[1] http://raindrops.bogomips.org/Raindrops/LastDataRecv.html
[2] http://raindrops.bogomips.org/Raindrops/Watcher.html
[3] http://raindrops.bogomips.org/Raindrops/TCP_Info.html

-- 
Eric Wong