fps脚本中为何如此设置：PAUSE_LATENCY = 20

[yonglezhuzhu]

PAUSE_LATENCY = 20这样设置的原因是什么？为何两个frame之间的latency大于20，则不是一个jankniess？

[gb112211]

    def get_Vsync_jankiness(self):
        if (self.refresh_period< 0):
            return -1
        round_normalized_delta2_Vsync = self.__get_round_normalized_delta2_Vsync()

        num_jankiness = 0
        for i in xrange(0, self.frame_latency_data_size-2):
            value = round_normalized_delta2_Vsync[i]
            if value > 0 and value < self.PAUSE_LATENCY:
                num_jankiness += 1

        return num_jankiness

参考官方的说明，我的理解是PAUSE_LATENCY 的值大于20的话，此时应该是在处在pause状态，因此不记录jankniess