title: Which setup is more efficient? Flask with pypy, or Flask with gevent?
body: <p>Both 'pypy' and 'gevent' are supposed to provide high performance. Pypy is supposedly faster than CPython, while gevent is based on co-routines and greenlets, which supposedly makes for a faster web server.</p>
  
  <p>However, they're not compatible with each other.</p>
  
  <p>I'm wondering which setup is more efficient (in terms of speed/performance):</p>
  
  <ul>
  <li>The builtin Flask server running on pypy</li>
  </ul>
  
  <p>or:</p>
  
  <ul>
  <li>The gevent server, running on CPython</li>
  </ul>