[Neutron] NUMA aware VxLAN

Fox, Kevin M Kevin.Fox at pnnl.gov
Tue Jul 9 00:17:47 UTC 2019

I'm curious. A lot of network cards support offloaded vxlan traffic these days so the processor isn't doing much work. Is this issue really a problem?

From: Guo, Ruijing [ruijing.guo at intel.com]
Sent: Sunday, July 07, 2019 5:47 PM
To: openstack-dev at lists.openstack.org; openstack at lists.openstack.org
Subject: [Neutron] NUMA aware VxLAN


Existing neutron ML2 support one VxLAN for tenant network. In NUMA case, VM 0 can be created in node 0 and VM 1 can be created in node 1 and VxLAN is in node 0.

VM1 need to cross node, which cause some performance downgrade. Does someone have this performance issue? Does Neutron community have plan to enhance it?
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