1481eaec3SMichael S. Tsirkin#!/bin/sh 2481eaec3SMichael S. Tsirkin 321f5eda9SHalil PasicCPUS_ONLINE=$(lscpu --online -p=cpu|grep -v -e '#') 4481eaec3SMichael S. Tsirkin#use last CPU for host. Why not the first? 5481eaec3SMichael S. Tsirkin#many devices tend to use cpu0 by default so 6481eaec3SMichael S. Tsirkin#it tends to be busier 721f5eda9SHalil PasicHOST_AFFINITY=$(echo "${CPUS_ONLINE}"|tail -n 1) 8481eaec3SMichael S. Tsirkin 9481eaec3SMichael S. Tsirkin#run command on all cpus 1021f5eda9SHalil Pasicfor cpu in $CPUS_ONLINE 11481eaec3SMichael S. Tsirkindo 12481eaec3SMichael S. Tsirkin #Don't run guest and host on same CPU 13481eaec3SMichael S. Tsirkin #It actually works ok if using signalling 14481eaec3SMichael S. Tsirkin if 15481eaec3SMichael S. Tsirkin (echo "$@" | grep -e "--sleep" > /dev/null) || \ 16481eaec3SMichael S. Tsirkin test $HOST_AFFINITY '!=' $cpu 17481eaec3SMichael S. Tsirkin then 18481eaec3SMichael S. Tsirkin echo "GUEST AFFINITY $cpu" 19481eaec3SMichael S. Tsirkin "$@" --host-affinity $HOST_AFFINITY --guest-affinity $cpu 20481eaec3SMichael S. Tsirkin fi 21481eaec3SMichael S. Tsirkindone 22481eaec3SMichael S. Tsirkinecho "NO GUEST AFFINITY" 23481eaec3SMichael S. Tsirkin"$@" --host-affinity $HOST_AFFINITY 24481eaec3SMichael S. Tsirkinecho "NO AFFINITY" 25481eaec3SMichael S. Tsirkin"$@" 26