Hello, On 12/16/16 10:09 AM, 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? > I would suggest to check any tcp 101c-like book for the explanation.
-- Maxim Konovalov _______________________________________________ nginx mailing list [email protected] http://mailman.nginx.org/mailman/listinfo/nginx
