On Fri, 2016-10-21 at 12:42 +0200, Steinar H. Gunderson wrote: > On Fri, Oct 21, 2016 at 03:28:01AM -0700, Eric Dumazet wrote: > > Could you provide /proc/sys/net/ipv4/tcp_rmem > > and /proc/sys/net/ipv4/tcp_wmem values on your server ? > > I see I have old sysctl.conf settings here, from tuning way back in the 2.6 > era: > > net/core/rmem_max = 8738140 > net/core/wmem_max = 8738140 > > net/ipv4/tcp_rmem = 4096 873814 8738140 > net/ipv4/tcp_wmem = 4096 873814 8738140 > > Perhaps it's time to kill them, but I don't know what the defaults are :-) > > > What is the rtt between your two hosts ? > > 35.7–36.0 ms. > > /* Steinar */
Ok, you could try 12 MB instead of 8MB to eventually reach line rate. net/ipv4/tcp_rmem = 4096 873814 12000000 net/ipv4/tcp_wmem = 4096 873814 12000000 _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
