I recently mentioned that we installed Jive Messenger at work to get a good instant messaging server that we could control and which didn’t result in important conversations leaving the building to talk to distant servers. In the time since I wrote that, Jive Messenger has been renamed to Wildfire Server and it has had a dramatic speed improvement. Jive Software: Wildfire Optimization is an article briefly detailing the optimization Jive Software did for the new version of the server and might be instructive if you haven’t done optimization on a Java project before.