The missing link that both of these things can be attributed to is the reduction in TCP timeout-based recoveries on the newer kernel because of the RFC 3517-related changes.
这些情况的原因中缺少的一环是在新内核中减少了 TCP 基于超时的恢复机制，原因是与 RFC3517 有关的改变。
If configured, the RTO value would be set as the initial retransmission timeout for all the TCP connections on the system.
如果配置了该值，那么会将这个rto值设置为该系统中所有TCP连接的初始重新传输超时。
This routine walks through the table of TCP control blocks and, for each connection, it decrements the timeout, specified in ticks, by one.
这个例程将遍历tcp控制块表，并且对每个连接的超时(以计时单元为单位进行指定)进行递减操作，即每次减一。
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