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50ad1a31be
Extend the systemd service so that it can be used for tuning the Energy Performance Preference (EPP) as well. Available options can be read from /sys/devices/system/cpu/cpufreq/policy0/energy_performance_available_preferences. The desired one can then be set in cpupower-service.conf. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
33 lines
768 B
Bash
33 lines
768 B
Bash
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (C) 2012, Sébastien Luttringer
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# Copyright (C) 2024, Francesco Poli <invernomuto@paranoici.org>
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ESTATUS=0
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# apply CPU clock frequency options
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if test -n "$FREQ"
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then
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cpupower frequency-set -f "$FREQ" > /dev/null || ESTATUS=1
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elif test -n "${GOVERNOR}${MIN_FREQ}${MAX_FREQ}"
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then
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cpupower frequency-set \
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${GOVERNOR:+ -g "$GOVERNOR"} \
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${MIN_FREQ:+ -d "$MIN_FREQ"} ${MAX_FREQ:+ -u "$MAX_FREQ"} \
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> /dev/null || ESTATUS=1
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fi
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# apply CPU policy options
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if test -n "$PERF_BIAS"
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then
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cpupower set -b "$PERF_BIAS" > /dev/null || ESTATUS=1
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fi
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# apply Energy Performance Preference
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if test -n "$EPP"
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then
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cpupower set -e "$EPP" > /dev/null || ESTATUS=1
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fi
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exit $ESTATUS
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