On Sun, Feb 12, 2012 at 10:18 AM, Mohit Dhingra <mohitdhing...@gmail.com> wrote: > Hi Jesse, > > Yes, I see your point that there is no benefit of controlling incoming > traffic, because anyways all traffic will arrive atleast till OVS level from > physical NIC, so that channel will be the bottleneck anyway. > > I configured OVS using Xen as Hypervisor, and, I am able to create VMs which > automatically gets connected to the bridge that OVS created. But I am not > seeing any QoS control in the VM. > > Here is the bridges and interfaces, > cadlab:~ # brctl show > bridge name bridge id STP enabled interfaces > eth0 0000.7071bc62737a no peth0 > > vif6.0 > > vif8.0 > > > I configured QoS on one of the VMs like this: > cadlab:~ # ovs-vsctl set Interface vif8.0 ingress_policing_rate=1000 > cadlab:~ # ovs-vsctl set Interface vif8.0 ingress_policing_burst=100 > > VMs are as follows : > cadlab:~ # xm list > Name ID Mem VCPUs State > Time(s) > Domain-0 0 6012 8 r----- > 2271.1 > opensuse11 8 1024 1 -b---- > 15.3 > opensuse11-clone 6 1024 1 -b---- > 21.4 > > Then I ran netperf test, I don't see max of 1 Mbps !!! > vm1@linux-g9jl:~> netperf -H 10.112.10.35 > TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 10.112.10.35 > (10.112.10.35) port 0 AF_INET : demo > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 16384 16384 10.02 93.46 > > I see 93 Mbps !!! Why is it so? > > Does anybody can tell me where I am wrong?
You need to use egress QoS on the NIC, since that's where the actual choke point is. _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
