title: Trouble configuring cachegrind with Xdebug
body: <p>I am trying to configure Xdebug for cachegrind but I can't manage to enable the profiler feature in order to dump executed web pages.</p>
  
  <p>I'm using <a href="http://xdebug.org/docs/profiler" rel="nofollow">the official guide</a> (and a few more with similar settings) and it doesn't seem to work. </p>
  
  <p>I've tried on both of my Linux machines (Ubuntu and Fedora). Xdebug is working fine for debugging and I can start <code>valgrind --tool=cachegrind</code> for an application so both should be installed properly.</p>
  
  <p>I was activating and deactivating profiler_enable and profiler_enable_trigger options in php.ini and restarting the server, no luck. Changed the output directory as I thought that it might be related to permissions. Using the <code>?XDEBUG_PROFILER=1</code> flag in the URL as a parameter doesn't seem to help either.</p>
  
  <p>Any other clues related to the configuration of cachegrind?</p>