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9c70b779ad
One of the most typical use cases of the 'cpupower' utility works as
follows: run 'cpupower' at boot with the desired command-line options
and then forget about it.
Add a systemd service (disabled by default) that automates this use
case (for environments where the initialization system is 'systemd'),
by running 'cpupower' at boot with the settings read from a default
configuration file.
The systemd service, the associated support script and the
corresponding default configuration file are derived from what is
provided by the Arch Linux package (under "GPL-2.0-or-later" terms),
modernized and enhanced in various ways (the script has also been
checked with 'shellcheck').
Link: dd2e2a311e
Signed-off-by: Francesco Poli (wintermute) <invernomuto@paranoici.org>
Reviewed-by: John B. Wyatt IV <jwyatt@redhat.com>
Reviewed-by: John B. Wyatt IV <sageofredondo@gmail.com>
Tested-by: John B. Wyatt IV <jwyatt@redhat.com>
Tested-by: John B. Wyatt IV <sageofredondo@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
27 lines
651 B
Bash
27 lines
651 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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exit $ESTATUS
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