'Dump counters to file'

def _dump_cnt(self):

    self._cnt['1h'].dump(os.path.join(self.data_path, 'scheduler.1h'))
    self._cnt['1d'].dump(os.path.join(self.data_path, 'scheduler.1d'))
    self._cnt['all'].dump(os.path.join(self.data_path, 'scheduler.all'))
