On Mon, Jul 07, 2014 at 08:19:57AM +0000, Emmanuel Dreyfus wrote: > What is an adequate value? I tried raising up this without much improvemet: > kern.sbmax=67108864 > net.inet.tcp.sendbuf_max=1048576 > net.inet.tcp.recvbuf_max=1048576
I now run with this: sysctl -w kern.sbmax=67108864 ; sysctl -w kern.somaxkva=67108864 ; sysctl -w net.inet.tcp.recvbuf_auto = 0 ; sysctl -w net.inet.tcp.sendbuf_auto = 0 ; sysctl -w net.inet.tcp.recvspace=1048576 ; sysctl -w net.inet.tcp.sendspace=1048576 ; ifconfig ixg1 mtu 9000 tso4 ip4csum-tx tcp4csum-tx udp4csum-tx ip4csum-rx ifconfig does not want tcp4csum-rx and udp4csum-rx despite advertising them as available. netperf now says I get 2330 Mb/s. Any idea of what I can tune to get a better result? Increasing the above value does not help. -- Emmanuel Dreyfus m...@netbsd.org