Support to set an optional csum attribute on ovs tunnels
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
neutron |
Fix Released
|
Medium
|
Mamta Prabhu |
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://
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.
tags: | added: rfe |
Changed in neutron: | |
assignee: | nobody → Mamta Prabhu (mamtaprabhu) |
Changed in neutron: | |
importance: | Undecided → Medium |
Changed in neutron: | |
milestone: | none → liberty-rc1 |
status: | Fix Committed → Fix Released |
Changed in neutron: | |
milestone: | liberty-rc1 → 7.0.0 |
Fix proposed to branch: master /review. openstack. org/220744
Review: https:/