On Sun, Apr 30, 2017 at 01:40:10AM +0000, Yikai Lin wrote: > Since packet buffering is removed from OVS in later releases, I wonder what > is the expected throughput performance for packet-in? Assume the controller > is out-of-band and located at 0.0.0.0. > > I ask this because when I tried to install a flow rule to deliberately send > all packets of a TCP flow to the control plane, the number of packets > actually arrived is quite small, way smaller than the number shown on the > dump-flows output. The tested traffic throughput is 500Mbps. > > BTW, it seems that altering the flow table with traffic in flight generates > inaccurate flow rule match numbers
"controller" actions never used packet buffering anyway. In all current release versions of OVS, using a "controller" action causes all packets in that flow to be forwarded via userspace. At high packet rates that will cause packet forwarding drops. Justin (CCed) is working to change that for other reasons, so I guess that it will be better in OVS 2.8. _______________________________________________ discuss mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
