In my last post, I talked about how I keep my approach to application performance simple – I use my one semester’s worth of microeconomics knowledge to continuously evaluate the supply and demand sides of my application architecture. What can go wrong, right? 
One of the points we’ll explore further in this post is that supply shouldn’t be viewed simply as a measure of hardware capacity. Better to view supply as that which is demanded (see what I did there…?). In a complex environment, supply can be measured as the number of connections, available SOA services, process space, and hardware. Here’s a good visualization of what I’m talking about: