public function getServerStatus($host, $port = 11211)
 {
     if ($this->logging) {
         $start = microtime(true);
         $name = 'getServerStatus';
         $arguments = array($host, $port);
     }
     list($_host, $_port) = array($host, $port);
     $result = parent::getServerStatus($_host, $_port);
     list($host, $port) = array($_host, $_port);
     if ($this->logging) {
         $time = microtime(true) - $start;
         $this->calls[] = (object) compact('start', 'time', 'name', 'arguments', 'result');
     }
     return $result;
 }