abslibre/libre/linux-libre-tools/cpupower.systemd

#!/bin/bash
# Copyright © 2012, Sébastien Luttringer
# SPDX-License-Identifier: GPL-2.0-or-later

declare -i fail=0

# parse frequency options
declare -a params=()
params+=(${governor:+-g $governor})
params+=(${min_freq:+-d $min_freq})
params+=(${max_freq:+-u $max_freq})
params+=(${freq:+-f $freq})

# apply frequency options
if ((${#params[@]} > 0)); then
  cpupower frequency-set "${params[@]}" >/dev/null || fail=1
fi

# parse cpu options
declare -a params=()
params+=(${mc_scheduler:+-m $mc_scheduler})
params+=(${smp_scheduler:+-s $smp_scheduler})
params+=(${perf_bias:+-b $perf_bias})

# apply cpu options
if ((${#params[@]} > 0)); then
  cpupower set "${params[@]}" >/dev/null || fail=1
fi

exit $fail

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