1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3 4CPUS_ONLINE=$(lscpu --online -p=cpu|grep -v -e '#') 5#use last CPU for host. Why not the first? 6#many devices tend to use cpu0 by default so 7#it tends to be busier 8HOST_AFFINITY=$(echo "${CPUS_ONLINE}"|tail -n 1) 9 10#run command on all cpus 11for cpu in $CPUS_ONLINE 12do 13 #Don't run guest and host on same CPU 14 #It actually works ok if using signalling 15 if 16 (echo "$@" | grep -e "--sleep" > /dev/null) || \ 17 test $HOST_AFFINITY '!=' $cpu 18 then 19 echo "GUEST AFFINITY $cpu" 20 "$@" --host-affinity $HOST_AFFINITY --guest-affinity $cpu 21 fi 22done 23echo "NO GUEST AFFINITY" 24"$@" --host-affinity $HOST_AFFINITY 25echo "NO AFFINITY" 26"$@" 27