lsof

root@ubuntu:~/docker/container# lsof -n -p 12212 |grep sock
qemu-syst 12212 root   13u     sock                0,9       0t0  666653 protocol: UNIX
qemu-syst 12212 root   14u     sock                0,9       0t0  666654 protocol: UNIX
qemu-syst 12212 root   15u     sock                0,9       0t0  666655 protocol: UNIX
qemu-syst 12212 root   26u     unix 0xffff809fb000c400       0t0  666671 /run/vc/vm/container1/console.sock type=STREAM
qemu-syst 12212 root   27u     unix 0xffff809fb000a400       0t0  666672 /run/vc/vm/container1/kata.sock type=STREAM

[root@localhost ovs]# lsof -nn | grep vhost-user1  | awk '{print $1}' | uniq
ovs-vswit
eal-intr-
rte_mp_ha
dpdk_watc
urcu2
ct_clean3
ipf_clean
handler13
handler14
handler15
handler16
handler17
handler18
handler19
handler20
handler21
handler22
revalidat
vhost-eve
pmd-c03/i
pmd-c01/i
pmd-c02/i