Hi list,
I'm a new user to OVS.
I installed OpenStack Grizzly, and using Quantum + OVS + VLAN for network.
I have two compute nodes with 10 Gb NICs, and the bandwidth between them is
about 8.49 Gbits/sec (tested by iperf).
I started one instance at each compute node:
instance-a => compute1
instance-b=> compute2
The bandwidth between this two virtual machine is only 1.18 Gbits/sec.
Then I start 6 instances at each compute node:
( instance-a => compute1 ) ----- iperf------ > (instance-b=>
compute2)
( instance-c => compute1 ) ----- iperf------ >
(instance-d=> compute2)
( instance-e => compute1 ) ----- iperf------ >
(instance-f=> compute2)
( instance-g => compute1 ) ----- iperf------ >
(instance-h=> compute2)
( instance-i => compute1 ) ----- iperf------ >
(instance-j=> compute2)
( instance-k => compute1 ) ----- iperf------ >
(instance-l=> compute2)
The total bandwidth is only 4.25 Gbits/sec.
Anyone know why the performance is this low ?
Thanks.
-chen
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