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