Project Darkstar

1st of all I love the name (seems really heavy weight to me :) )
Project Darkstar is an open source massively multiplayer online game middle ware supports load balancing:

Oracle shut it down in 2010 and now it's a community project called RedDwarf.

Anyways how I got to Project Darkstar: 

I was looking for performance benchmarks on Google's Protocol Buffers and thus found a stackoverflow post on Performance comparison on the same. The numbers are pretty impressive considering the overhead it takes to serialize things.

Anyways here's a screenshot of what the performance numbers from stackoverflow were:

I think I will be trying to use protocol buffers and Project Darkstar for something or the other in near future.