title: How to find which rspec test is taking so long
body: <p>One (or a couple) of our tests are taking forever and we'd like to optimize them.</p>
  
  <p>We have say 1000 tests so it's impractical for me to go through run each file.</p>
  
  <p>Is there an easy to way to find the slow ones?</p>
  
  <p>This is rspec 1.3</p>