On Wed, Oct 16, 2013 at 2:27 AM, Li, Chen <chen...@intel.com> wrote: > Hi list, > > > > I’m working on Openvswitch + Openstack. > > > > I tested the bandwidth between the virtual machine (host 1) and a physical > machine (host 2). > > > > Physical machine - > virtual machine > 2.92 Gbits/sec > > > > virtual machine - > Physical machine > 7.31 Gbits/sec > > > > (The link between host 1 and host 2 is 10 Gbit/sec) > > > > After > > 1. Stop openvswitch-agent: > > service quantum-openvswitch-agent stop > > 2. removed flow rules on OVS bridge: > > ovs-ofctl del-flows br-eth4 in_port=17 > > ovs-ofctl del-flows br-int in_port=5 > > 3. removed VLAN tag for OVS port: > > ovs-vsctl clear port "qvo8fe2b20a-d3" tag > > ovs-vsctl clear port "qvo906d5a8c-c1" tag > > > > The network bandwidth between instance and a physical host reached 9.4 Gb/s. > > Physical machine - > virtual machine > 9.40 Gbits/sec > > > > virtual machine - > Physical machine > 9.39 Gbits/sec > > > > Looks like mod_vlan_id/add_vlan_id really affect bandwidth a lot. > > > > I want to get higher bandwidth under Openstack, especially for receive side. > > Anyone know how to tuning it ?
Usually VLAN problems are the result of loss of offloads or incompatibilities, particularly on older kernels. What kernel and driver are you using? _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
