On Jan 30, 2014, at 6:26 AM, CARVER, PAUL <pc2...@att.com> wrote: > Vishvananda Ishaya wrote: > > >In testing I have been unable to saturate a 10g link using a single VM. Even > >with multiple streams, > >the best I have been able to do (using virtio and vhost_net is about 7.8g. > > Can you share details about your hardware and vSwitch config (possibly off > list if that isn’t a valid openstack-dev topic) > > I haven’t been able to spend any time on serious performance testing, but > just doing preliminary testing on a HP BL460cG8 and Virtual Connect I haven’t > been able to push more than about 1Gbps using a pretty vanilla Havana install > with OvS and VLANs (no GRE).
This is using nova-network mode. There are likely new software bottlenecks introduced by Neutron/OVS, but a huge amount of performance tweaking is around jumbo frames and vhost-net. This article has a bunch of excellent suggestions: http://buriedlede.blogspot.com/2012/11/driving-100-gigabit-network-with.html Vish > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
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