Solomon August 26, 2013 8:35 pm

Good point. The really cool part about cloud ciuomtpng in general, and the specific cost models used in particular, are that it exposes the costs of architectural decisions directly and concretely to the developer. Before cloud these costs still existed but were usually not easily accessible to the developer directly. Now, it's fairly simple for a dev to say My code costs X to run a single request. Very useful, particularly for evolving a system over time. It gives you a very nice way to measure your efficiency gains.