Hi, I will read this article and get understand what tcpinfo_rtt is. Thank you very much!
2016-12-16 16:15 GMT+08:00 Ruslan Ermilov <[email protected]>: > On Fri, Dec 16, 2016 at 03:09:14PM +0800, yanqun sun wrote: > > Hi, all: > > I want to get the network latency between the users and my Nginx > servers > > on tcp layer. I searched about this and found several Nginx variables > > bellow: > > > > $tcpinfo_rtt, $tcpinfo_rttvar, $tcpinfo_snd_cwnd, $tcpinfo_rcv_space > > information about the client TCP connection; available on systems that > > support the TCP_INFO socket option > > > > > > So does anybody can make an explanation for those variables? > > I think *$tcpinfo_rtt* probably means the round trip time from the > client > > to the server on tcp layer. > > and what about the rttvar, snd_cwnd and rcv_space? > > http://linuxgazette.net/136/pfeiffer.html > _______________________________________________ > nginx mailing list > [email protected] > http://mailman.nginx.org/mailman/listinfo/nginx >
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