#!/bin/sh
  
  #use last CPU for host. Why not the first?
  #many devices tend to use cpu0 by default so
  #it tends to be busier
  HOST_AFFINITY=$(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n|tail -1)
  
  #run command on all cpus
  for cpu in $(cd /dev/cpu; ls|grep -v '[a-z]'|sort -n);
  do
  	#Don't run guest and host on same CPU
  	#It actually works ok if using signalling
  	if
  		(echo "$@" | grep -e "--sleep" > /dev/null) || \
  			test $HOST_AFFINITY '!=' $cpu
  	then
  		echo "GUEST AFFINITY $cpu"
  		"$@" --host-affinity $HOST_AFFINITY --guest-affinity $cpu
  	fi
  done
  echo "NO GUEST AFFINITY"
  "$@" --host-affinity $HOST_AFFINITY
  echo "NO AFFINITY"
  "$@"