title: How to flush the disk read cache under Windows?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/7405868/how-to-invalidate-the-file-system-cache">How to invalidate the file system cache?</a>  </p>
  </blockquote>
  
  
  
  <p>In order to be able to so some benchmarks I need to cleanup Windows disk <strong>read</strong> cache. How can I do this?</p>
  
  <p>In fact I want to compare if loading a big Unicode file (UTF-8 or UTF-16) from disk is faster or not, considering that in memory I do keep UTF-16. </p>
  
  <p>I know that it should be no significant difference but in order to benchmark it I need to be sure that that file is not cached - I need to see if size on disk has more or less impact than decoding the file.</p>