| #!/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 $HOST_AFFINITY |
| echo "NO AFFINITY" |
| "$@" |
