code: def burst_run(self):
          
          # https://wiki.python.org/moin/PythonSpeed/PerformanceTips#Avoiding_dots...
          get_and_call_next_op = self.get_and_call_next_op
  
          for __ in range(self.outer_burst_op_count):
              for __ in range(self.inner_burst_op_count):
                  get_and_call_next_op()
  
              self.call_sync_callbacks()
docs: Run CPU as fast as Python can...