title: Set the "realpath cache size"
body: <p>One of my extensions asks me to set the realpath_cache_size to a minimum of 512k. So do i have to set it inside of the .htaccess like:</p>
  
  <pre><code>realpath_cache_size = 512k 
  </code></pre>
  
  <p>And what are the consequences for the whole site, is it ok or too high? I don´t understand this cache size.</p>
  
  <p>Thanks for help.</p>