title: Impact of XmlContentCheckForDiskChanges in umbraco 6/7
body: <p>What is impact of configuration option: </p>
  
  <pre><code>&lt;!-- Update in-memory cache if xml file is changed --&gt;
  &lt;XmlContentCheckForDiskChanges&gt;False&lt;/XmlContentCheckForDiskChanges&gt;
  </code></pre>
  
  <p><strong>Questions I have in mind</strong></p>
  
  <ul>
  <li>Does this impact performance and how? </li>
  <li>Does it improve it?</li>
  <li>Does it cause app recycle everything this happens?</li>
  </ul>
  
  <p>Documentation does not provide much useful help. (<a href="http://our.umbraco.org/documentation/Using-Umbraco/Config-files/umbracoSettings/" rel="nofollow">http://our.umbraco.org/documentation/Using-Umbraco/Config-files/umbracoSettings/</a>)</p>