def start(self):
        if self.frequency > 0:
            threadname = self.name or self.__class__.__name__
            if self.thread is None:
                self.thread = BackgroundTask(self.frequency, self.callback,
                                             bus = self.bus)
                self.thread.setName(threadname)
                self.thread.start()
                self.bus.log("Started monitor thread %r." % threadname)
            else:
                self.bus.log("Monitor thread %r already started." % threadname)
Test saving a list and make sure it's reasonably fast
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/cherrypy/cherrypy/process/plugins.py/Monitor.start--crossover with--dataset/ETHPy150Open duerrp/pyexperiment/tests/test_state.py/TestStateEfficientIO.test_saving_list_performance