On Jan 30, 2014, at 6:26 AM, CARVER, PAUL <pc2929 at 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 at lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140130/43105263/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 455 bytes Desc: Message signed with OpenPGP using GPGMail URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140130/43105263/attachment.pgp>