code: def _update_new_ordered_reqs_count(self):
          
          last_num_ordered = self._last_performance_check_data.get('num_ordered')
          num_ordered = sum(num for num, _ in self.monitor.numOrderedRequests.values())
          if num_ordered != last_num_ordered:
              self._last_performance_check_data['num_ordered'] = num_ordered
              return True
          else:
              return False
docs: Checks if any requests have been ordered since last performance check
          and updates the performance check data store if needed.
          :return: True if new ordered requests, False otherwise