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22 lines
1.1 KiB
Markdown
22 lines
1.1 KiB
Markdown
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[Source](https://community.frame.work/t/battery-life/861/12)
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For Linux you have much more control if you wanted to control the power envelope yourself. you can use the sysfs interface for the intel-rapl driver to adjust the power limits:
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Eg you can set your PL1 (long term) and PL2 (short term) power limits in uW:
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echo 1 > /sys/class/powercap/intel-rapl:0/enabled
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#PL1
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echo 28000000 > /sys/class/powercap/intel-rapl:0/constraint_0_power_limit_uw
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#PL2
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echo 64000000 > /sys/class/powercap/intel-rapl:0/constraint_1_power_limit_uw
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From what I have found there is not a good way for the major window managers to control power profiles that are built into gnome/kde/etc. But it would be interesting to explore more.
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You can read about the interface here, it is pretty cool because you can also use this to monitor power usage too:
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https://www.kernel.org/doc/html/latest/power/powercap/powercap.html
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There are a few mentions of intel projects for linux.
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https://01.org/linux-thermal-daemon/documentation/introduction-thermal-daemon
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https://github.com/intel/dptf
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https://01.org/blogs/2014/running-average-power-limit-%E2%80%93-rapl
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