rt 上帖：https://www.nodeseek.com/post-486044-1
还是换cn2吧
cn2晚高峰不涨延迟
刚刚拉的数据
从上午开始测试的

--- us1 ping statistics ---

40078 packets transmitted, 40065 received, 0.0324367% packet loss, time 40122088ms

rtt min/avg/max/mdev = 130.816/134.043/199.699/1.770 ms