title: Load EhCache diskstore content into memory
body: <p>As said in <a href="http://ehcache.org/documentation/get-started/storage-options">EhCache documentation</a>:</p>
  
  <blockquote>
    <p>In practice this means that persistent <strong>in-memory cache will start up with all of its elements on disk</strong>. [...] So, the Ehcache design does not load them all into memory on start up, but lazily loads them as required.</p>
  </blockquote>
  
  <p>I would like that the memory cache start up will all its elements in memory, how can I achieve that?</p>
  
  <p>The reason for this is that our website performs a <em>lot</em> of access to the cache, so the first time we visit the website it has very bad response time.</p>