>Question: what are the additional overhead in the standard OVS that cause >to poor performance related to the OVS-DPDK setup ? >I'm not talking about the PMD improvements (OVS-DPDK) running on the >host - but on overhead in the VM context in the standard OVS setup
When running guest instances on OvS, vhost-net driver modules shall be used. In case of OvS-DPDK, vhost-user library is used and runs entirely in user space and is the reason for higher performance in VM context Refer to this document on some internals of vhost-library: http://dpdk.readthedocs.io/en/v16.07/sample_app_ug/vhost.html - Bhanuprakash. _______________________________________________ discuss mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
