title: Is there a way to see how much memory a variable uses?
body: <p>I am working with Perl for some months now.
  As for now, my scripts work but they are far from being perfect.</p>
  
  <p>I would now like to optimize the memory usage, thus I am looking for a way to break down the memory usage per variable/hash.</p>
  
  <p>Is there a way to see how much memory a variable uses?</p>