title: Redis - How to completely flush/clear memory after a flushdb?
body: <p>After doing several <code>flushdb</code> on a Redis database, I wonder how to completely flush/clear the memory use ?</p>
  
  <p>Indeed, I made some tests :</p>
  
  <ul>
  <li>watching memory with a <code>htop</code> -> 800 Mo used</li>
  <li>fill in a Redis database -> goes to 1500 Mo used</li>
  <li>flushing the database => memory use stay at about 1500 Mo...</li>
  </ul>
  
  <p>Any ideas ?  Thanks</p>