学过分布式系统的进来

tempzoe

client attempts to synchronize with a time server. It records the round-trip times and timestamps returned by
the server in the table below.
Which of these times should it use to set its clock? To what time should it set it? Estimate the accuracy of the
setting with respect to the server’s clock. If it is known that the time between sending and receiving a message
in the system concerned is at least 8 ms, do your answers change?
Round-trip (ms) Time (hr:min:sec)
22                    10:54:23.674
25                    10:54:25.450
20                    10:54:28.342

前面的问题都知道,最后一个问题是If it is known that the time between sending and receiving a message in the system conerne is at least 14ms. how do you answer change?
这个还能用Christian算法吗？到底怎么计算?