Public bug reported: During some of the performance tests, it was observed that on few of the 10G nics (intel br kx4 dual-port, intel 82599es), enabling the csum option boosted the vxlan/geneve performance by triggering GRO on the receiver.
Kindly refer to the link for more details on the role of csum in vxlan performance. http://openvswitch.org/pipermail/dev/2015-August/059335.html This defect is created to add an additional option (tunnel_csum) in the ovs agent. This option will be passed to the ovs agent, which in turn will set the "option:csum" during the creation of GRE, VXLAN, and GENEVE tunnels The provision for this option is available in OVS 2.4 for vxlan/geneve. The changes for this option will be on similar lines of "dont_fragment" flag. ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1492111 Title: Support to set an optional csum attribute on ovs tunnels Status in neutron: New Bug description: During some of the performance tests, it was observed that on few of the 10G nics (intel br kx4 dual-port, intel 82599es), enabling the csum option boosted the vxlan/geneve performance by triggering GRO on the receiver. Kindly refer to the link for more details on the role of csum in vxlan performance. http://openvswitch.org/pipermail/dev/2015-August/059335.html This defect is created to add an additional option (tunnel_csum) in the ovs agent. This option will be passed to the ovs agent, which in turn will set the "option:csum" during the creation of GRE, VXLAN, and GENEVE tunnels The provision for this option is available in OVS 2.4 for vxlan/geneve. The changes for this option will be on similar lines of "dont_fragment" flag. To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1492111/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
