| #!/bin/sh | |
| # SPDX-License-Identifier: GPL-2.0 | |
| CPUS_ONLINE=$(lscpu --online -p=cpu|grep -v -e '#') | |
| #use last CPU for host. Why not the first? | |
| #many devices tend to use cpu0 by default so | |
| #it tends to be busier | |
| HOST_AFFINITY=$(echo "${CPUS_ONLINE}"|tail -n 1) | |
| #run command on all cpus | |
| for cpu in $CPUS_ONLINE | |
| do | |
| #Don't run guest and host on same CPU | |
| #It actually works ok if using signalling | |
| if | |
| (echo "$@" | 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 $HOST_AFFINITY | |
| echo "NO AFFINITY" | |
| "$@" |