title: Is mmap the best way to communicate between processes?
body: <p>I use a file to communicate between Python and Ruby script. But, we have mmap. So here are my questions. </p>
  
  <ul>
  <li>Can I do the same thing (communicate between processes) with mmap?</li>
  <li>What advantage can mmap give us over physical file? Speedup?</li>
  <li>What would be the easiest way to communicate between two processes?</li>
  <li>What would be the fastest way to communicate between two processes?</li>
  </ul>