title: which is faster for load: pickle or hdf5 in python
body: <p>Given a 1.5 Gb list of pandas dataframes, <strong>which format is fastest for loading compressed data</strong>:
  pickle (via cPickle), hdf5, or something else in Python?</p>
  
  <ul>
  <li>I only care about fastest speed to load the data into memory</li>
  <li>I don't care about dumping the data, it's slow but I only do this once.</li>
  <li>I don't care about file size on disk</li>
  </ul>