Pradeep I have tried few tests by trying to turn on TSO , but according to my observation, ovs-dpdk doesn't support TSO Offloading.
You can try this reference from the following page: http://dpdk-test-plans.readthedocs.io/en/latest/vhost_tso_test_plan.html Thanks On Tue, May 22, 2018 at 1:39 AM, Pradeep K.S <pradeepks....@gmail.com> wrote: > Hi, > > I switched from OVS to OVS-DPDK and changed the VNFs to use vhost-user > backend. I used iperf to compare the performance of vhost-net and > vhost-user backend performance. Despite tuning on all fronts [more queues, > more pmd threads chaining affinities, socket memory, increase cpus] get > the below results, > > 1) VM-VM: lower through put than vhost-net, lot less (1/4 of vhost-net) > After googling found few links which pointed to TSO offload needed in > OVS-DPDK, > couldn't get option in OVS-DPDK to change that. > > 2) VM->PNIC->VM: Slightly better performance, not much. > > I can look further on tuning, Anyone faced the same issue and any pointers > would be helpful. > > > > -- > Thanks and Regards, > Pradeep.K.S. > > _______________________________________________ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss > >
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