Server just appears to be overloaded - the status code it returns for the page is 503. It also tries to load some js/css but those return empty 503s.<p>In the meantime, Google returns this article about it: <a href="http://www.infoq.com/articles/deft-loft" rel="nofollow">http://www.infoq.com/articles/deft-loft</a>
The page just says deft for me, but apparently the project is in incubator over at apache: <a href="http://incubator.apache.org/deft/" rel="nofollow">http://incubator.apache.org/deft/</a>
So, first of all this is hosted on Google App Engine -- so I don't even see how it could even provide what is claimed. The environment doesn't really support it.<p>If you want asynchronous network programming in Java or Scala, you should be using either Netty or something higher level like Finagle: <a href="http://github.com/twitter/finagle" rel="nofollow">http://github.com/twitter/finagle</a>
This is probably the most amazing thing I've seen in a long time: <a href="http://i.imgur.com/sBMCW.png" rel="nofollow">http://i.imgur.com/sBMCW.png</a>
I'd assume classes of web app servers perform roughly the same. An evented server in C(++) (Nodejs) should be faster than an evented server in Java for small app code request handlers.<p>For larger app code the speed should approach the performance ratio of the VMs (V8/JVM) involved.<p>So I think this is rather uninteresting.