"Kirk Pepperdine, interviews Joe Walker of SitePen. Joe covers the advantages of DWR for your Java to Javascript apps, and considers the issues involved in load testing these types of apps."
"Each individual lookup wasn't that long, but by the time you had several hundred thousand in each iteration, and iterations triggered several times a second, we had moved into sucky-slow land"
"You can safely ignore the small inefficiencies 97% of the time. That means that you should pay attention to small inefficiencies 1 out of every 33 lines of code you write."