set-poh-priority.sh

#!/usr/bin/env bash

XDG_RUNTIME_DIR="/run/user/$(id -u solana)"

set -o errexit
set -o nounset
set -o pipefail

PID=$(pidof solana-validator)

if [[ -z "${PID}" ]]; then
        echo "Solana not running it seems. Could not find solana-validator pid."
        exit 1
fi

for thread_proc in /proc/${PID}/task/*
do
        if [ -d "${thread_proc}" ]; then
                TID=$(basename "$thread_proc")
                THREAD_NAME=$(<"${thread_proc}/comm")

                echo "${THREAD_NAME} ${TID}"
                if [[ "${THREAD_NAME}" == "solana-poh-serv" ]]; then
                      # realtime priority:
                      #    chrt -r -p 20 ${TID}
                      # set core
                      #    taskset -pc 2 ${TID}
                      renice -n -10 -p "${TID}"
                else
                      renice -n -5 -p "${TID}"
                fi
        fi
done
renice -n -5 -p "${PID}"

I think, this line
if [[ "${THREAD_NAME}" == "solana-poh-serv" ]]; then
can be modified to
if [[ "${THREAD_NAME,,}" == *"poh"* ]]; then
Because. the latest thread names are

 ps -A  -L -o pid,tid,ni,comm | grep -i poh
31780 31874   0 solPohTimingRpt
31780 32764   0 solPohTickProd

I think, we can renice only solPohTickProd