[ovs-discuss] Multiple dpdk-netdev datapath with OVS 2.9

[O'Reilly, Darragh]

> -----Original Message-----
> From: alp.arslan at xflowresearch.com [mailto:alp.arslan at xflowresearch.com]
> 
> Enabling disabling EMC has no effect on this scenario. As far as I know there is
> one EMC per PMD thread, so the interfaces have their own EMC's, the bigger
> question is why does traffic on one interface effect the performance of the
> other? Are they sharing anything? The only thing I can think of is the datapath
> and the megaflow table, and I am looking for some way to do that, is this
> doesn't work my only other option is to have 4 VMs with pass-through interfaces
> and run OVS-DPDK inside VMs.
> 
Could it be the nature of the test traffic, flows and total rate of received packets with 4 NICs? Is the slow path thread ovs-vswitchd maxed out?