Instrumenting Your System

Many different applications can show you what’s going on given that they’re fed the right data. Although we can’t recommend which tool to use, we can try to give an overview of the data that can be gathered. In short, instead of discovering how to view the different performance views of the system, we’d like to focus on what to measure. We’ll illustrate what useful data can be coaxed out of the VM and how to use it to inform decisions. Let’s get started.

Using Observer as a guide