def command_inner_burst_op_count(self, event=None):
        """ CPU burst max running time - self.runtime_cfg.inner_burst_op_count """
        try:
            inner_burst_op_count = self.inner_burst_op_count_var.get()
        except ValueError:
            inner_burst_op_count = self.runtime_cfg.inner_burst_op_count

        if inner_burst_op_count < 1:
            inner_burst_op_count = self.runtime_cfg.inner_burst_op_count

        self.runtime_cfg.inner_burst_op_count = inner_burst_op_count
        self.inner_burst_op_count_var.set(self.runtime_cfg.inner_burst_op_count)
CPU burst max running time - self.runtime_cfg.inner_burst_op_count