title: How to time the different stages of maven execution
body: <p>I have a maven build that is extremely slow. I would like to know whether there is a way to profile maven execution in order to find out which are the most time-consuming steps.</p>
  
  <p>Later I will want to compare these times between builds for older versions (which were faster), so they should be ideally in a format that can be compared/diffed/graphed.</p>