On Wed, Apr 30, 2014 at 7:14 AM, Thomas F Herbert <[email protected]> wrote: > Hui, > > It also might be interesting to compare this performance with non-OVS linux > bridging on the same kernel revision. > Depending on the upstream kernel rev, the performance difference could have > something to do with whether HW acceleration is used for the tag push/pop > operations. > > --Tom > > On 4/29/2014 5:26 PM, Hui Kang wrote: > > Hi, > I use iperf to test the 10G performance of OVS bridge with vlan tag added on > the vport for the VMs.
What's the packets that iperf send? tcp? Give that packets're tagged, is there any chance that it's related with mtu? > > On each machine, the OVS bridge are created on the Intel 82599 10G NIC. I > found the performance drops significantly when I added vlan tag on the > vport of both VMs. > > no vlan tag: 9.47 Gbps > add vlan tag: 3.96 Gbps > > Is this a normal behavior after adding vlan tag to the packet header? > Thanks. > > - Hui Kang > > > _______________________________________________ > discuss mailing list > [email protected] > http://openvswitch.org/mailman/listinfo/discuss > > > > _______________________________________________ > discuss mailing list > [email protected] > http://openvswitch.org/mailman/listinfo/discuss > _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
