title: What is the meaning of php-fpm slowlog first field?
body: <p>What is the meaning of the hex value in php-fpm slowlog?</p>
  
  <p>Ex:</p>
  
  <pre><code>[28-Jan-2014 05:37:04]  [pool example] pid 30651
  script_filename = /www/example/index/app.php-fpm
  [0x0000000001a12d00] sleep() /www/example/application/controllers/MController.php:51
  [0x0000000001a12740] sleepAction() /www/example/zendframework/Zend/Controller/Action.php:513
  [0x0000000001a11928] dispatch() /www/example/zendframework/Zend/Controller/Dispatcher/Standard.php:289
  [0x0000000001a0ff00] dispatch() /www/example/zendframework/Zend/Controller/Front.php:954
  [0x0000000001a0dd88] dispatch() /www/example/index/app.php-fpm:244
  </code></pre>
  
  <p>Memory address in the call stack? Execution time in Hex?</p>