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.
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
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