Comment 7 for bug 1644802

Verified on 9.2 snapshot #627.

Actual results:
From compute node of cluster with DPDK feature:
root@node-6:~# ovs-vsctl list open_vswitch | fgrep other_config
other_config : {dpdk-extra="-n 2 --vhost-owner libvirt-qemu:kvm --vhost-perm 0664", dpdk-init="true", dpdk-lcore-mask="0x1", dpdk-socket-mem="1024"}