code: public function clear()
      {
          $this->_repeat = 1;
          $this->_startTime = 0;
          $this->_duration = 0;
          $this->_average = 0;
          $this->_rate = 0;
          $this->_startMem = 0;
          $this->_memory = 0;
      }
docs: Clears the stats.