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3 Commits
94b379c717
...
b3ee528c18
Author | SHA1 | Date |
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Tom Alexander | b3ee528c18 | 5 months ago |
Tom Alexander | 9ac2605912 | 5 months ago |
Tom Alexander | c87ac216a9 | 5 months ago |
@ -0,0 +1,29 @@
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#!/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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@ -0,0 +1,2 @@
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# Favor energy efficiency for platform profile (EC / system, not CPU)
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w- /sys/firmware/acpi/platform_profile - - - - low-power
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@ -1,4 +1,4 @@
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# Favor energy efficiency for Speed Shift
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# Favor energy efficiency for hardware p-states
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{% for core in range(0, cores, 1) %}
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w- /sys/devices/system/cpu/cpufreq/policy{{core}}/energy_performance_preference - - - - power
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{% endfor %}
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