30 lines
1.1 KiB
Bash
30 lines
1.1 KiB
Bash
#!/usr/bin/env bash
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#
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# Tell hardware p-states whether to maximize CPU performance (100) or
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# energy efficiency (0).
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set -euo pipefail
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IFS=$'\n\t'
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DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
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perc=$1
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if [ "$perc" -gt 80 ]; then
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echo performance | tee /sys/firmware/acpi/platform_profile
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elif [ "$perc" -ge 20 ]; then
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echo balanced | tee /sys/firmware/acpi/platform_profile
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else
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echo low-power | tee /sys/firmware/acpi/platform_profile
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fi
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if [ "$perc" -ge 80 ]; then
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echo "performance" | tee /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
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elif [ "$perc" -ge 60 ]; then
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echo "balance_performance" | tee /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
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elif [ "$perc" -ge 40 ]; then
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echo "default" | tee /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
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elif [ "$perc" -ge 20 ]; then
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echo "balance_power" | tee /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
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else
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echo "power" | tee /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
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fi
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