在Linux中获取TCP RTT

本文介绍了在Linux中获取TCP RTT的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我需要获取RTT以获取TCP流.我已经研究了proc文件系统，但无法获取TCP的RTT值.如果有人对此有任何想法，将在其中存储RTT文件.

提前谢谢.

解决方案

也许iproute实用程序中提供的ss(套接字统计信息)实用程序可以为您提供帮助.

# ss -i 'src 1.1.1.1:1234 and dst 2.2.2.2:1234'
State      Recv-Q Send-Q                         Local Address:Port                             Peer Address:Port
ESTAB      0      0                              1.1.1.1:1234                                   2.2.2.2:1234
    reno wscale:2,7 rto:3380 rtt:855/602.5 ato:40 ssthresh:2 send 27.3Kbps rcv_space:5840

如果您想更多地了解rtt字段是什么，我认为最好看看.

I need to fetch the RTT for TCP flow.I have looked into the proc file system but not able to get the RTT value of TCP .If any one having any idea regarding it that, in which file RTT would be stored pleae share.

Thanks in advance.

解决方案

Maybe the ss (socket statistics) util available in the iproute utils can help you with this.

# ss -i 'src 1.1.1.1:1234 and dst 2.2.2.2:1234'
State      Recv-Q Send-Q                         Local Address:Port                             Peer Address:Port
ESTAB      0      0                              1.1.1.1:1234                                   2.2.2.2:1234
    reno wscale:2,7 rto:3380 rtt:855/602.5 ato:40 ssthresh:2 send 27.3Kbps rcv_space:5840

If you want more information what the rtt field is i think it is best to take a look at ss.c.

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