Very interesting! But isn't there a disavantage for node.js considering it's single threaded? Did you cluster it to use every core on the box ? (http://stackoverflow.com/a/8685968/1909827 - "Scaling throughput on a webservice")
>We attempted to take advantage of threading/multiple-processes as best we could (see the nodejs code for an example of using the cluster module). But we suspect there are additional areas of improvement here.
