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https://abf.rosa.ru/djam/kernel-6.7-xanmod.git
synced 2025-02-23 17:12:47 +00:00
ecc4aae2dc
Should fix bug #4810. cpupower will now select the governor automatically during the start of the service, based on what is available. This can be overridden with the variables in /etc/sysconfig/cpupower (see the comments there).
47 lines
1.4 KiB
Bash
47 lines
1.4 KiB
Bash
#!/bin/bash
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# A wrapper for cpupower to set the appropriate governor for frequency
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# scaling. Sets 'ondemand', 'powersave' or 'performance' if available
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# (checks availablility in this order).
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# The user can override this behaviour by specifying the governor in
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# CPUPOWER_GOVERNOR variable.
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#
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# CPUPOWER_OTHER_ARGS can be used to provide additional arguments to
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# cpupower.
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AVAIL_FILE=/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
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USE_GOVERNOR=""
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if ! test -e "${AVAIL_FILE}"; then
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printf "CPU frequency scaling is not supported.\n"
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exit 1
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fi
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if test -n "${CPUPOWER_GOVERNOR}"; then
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if grep "${CPUPOWER_GOVERNOR}" "${AVAIL_FILE}" >/dev/null 2>&1; then
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USE_GOVERNOR="${CPUPOWER_GOVERNOR}"
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else
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printf "Unknown governor: ${CPUPOWER_GOVERNOR}.\n"
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printf "Available governors: "
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cat "${AVAIL_FILE}"
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printf "\n"
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exit 1
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fi
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elif grep "ondemand" "${AVAIL_FILE}" >/dev/null 2>&1; then
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USE_GOVERNOR=ondemand
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elif grep "powersave" "${AVAIL_FILE}" >/dev/null 2>&1; then
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USE_GOVERNOR=powersave
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elif grep "performance" "${AVAIL_FILE}" >/dev/null 2>&1; then
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USE_GOVERNOR=performance
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else
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printf "Failed to select the governor automatically, "
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printf "please specify it explicitly in CPUPOWER_GOVERNOR variable.\n"
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printf "Available governors: "
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cat "${AVAIL_FILE}"
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printf "\n"
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exit 1
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fi
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# Set the governor at last.
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printf "Using \"${USE_GOVERNOR}\" governor.\n"
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/usr/bin/cpupower frequency-set -g ${USE_GOVERNOR} ${CPUPOWER_OTHER_ARGS}
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