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