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 ? Thanks. -chen
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