Add following startup.conf config:

cpu {
scheduler-priority <num>
scheduler-policy [other | batch | idle | fifo | rr ]
}

• reflect those values to SCHED_SETSCHEDULER system call
• extend "show threads” to display same information by calling “sched_getscheduler"
• if no startup config, don’t do anything
• verify with "chrt -a -p $(pgrep vpp)” that it actually works
• verify that it works for vpp_lite platform