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--- linux:notes:x86_energy_perf_policy [2024/10/30 03:46] – Sean Rhone
+++ linux:notes:x86_energy_perf_policy [2025/05/16 21:39] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-====== x86_energy_perf_policy ======
+====== Information ======
-  watch --interval '0.5' grep \'cpu MHz\' '/proc/cpuinfo'
+  * ''x86_energy_perf_policy'' as udev rule
+  * Alternative to ''tuned'', ''tlp'', etc
-  * Check
+===== Prerequisites =====
-  sudo x86_energy_perf_policy
+  * [[linux;distros;opensuse_tumbleweed_gnome|openSUSE Tumbleweed (GNOME)]]
-  * Max Performance
+  sudo zypper remove --clean-deps 'tuned'
-  sudo x86_energy_perf_policy --all 'performance' --turbo-enable '1' --force
+  sudo zypper addlock 'tuned'
-====== Scripts ======
+  sudo zypper install 'cpupower'
-  * [[linux:distros:fedora_workstation_gnome|Fedora Workstation]]
+===== Check =====
-===== TuneD =====
+  watch --interval '0.5' grep \'cpu MHz\' '/proc/cpuinfo'
-  * Automatic power-management like ''tlp''
+  sudo x86_energy_perf_policy
-  * Required to remove ''tuned'' so it doesn't override below udev rule
-  sudo dnf remove ''tuned''
+===== Max Perf =====
+****
+  sudo x86_energy_perf_policy --all 'performance' --turbo-enable '1' --force
+====== Scripts ======
 ===== AC =====
-  sudo mkdir -p '/etc/udev/scripts.d' && sudo -e '/etc/udev/scripts.d/ac-power.sh' && sudo restorecon -F -I -v '/etc/udev/scripts.d/ac-power.sh' && sudo chmod +x '/etc/udev/scripts.d/ac-power.sh'
+  sudo mkdir -p '/etc/udev/scripts.d' && sudo -e '/etc/udev/scripts.d/ac-power.sh' && sudo restorecon -F -I -R '/etc/udev/scripts.d' && sudo chmod +x '/etc/udev/scripts.d/ac-power.sh'
 <code>
 #!/bin/bash
-# AC
+'/usr/bin/x86_energy_perf_policy' --all 'performance' --turbo-enable '1' --force
-x86_energy_perf_policy --all 'performance' --turbo-enable '1' --force
 # End</code>
-  '/etc/udev/scripts.d/ac-power.sh'
 ===== Battery =====
-  sudo mkdir -p '/etc/udev/scripts.d' && sudo -e '/etc/udev/scripts.d/battery-power.sh' && sudo restorecon -F -I -v '/etc/udev/scripts.d/battery-power.sh' && sudo chmod +x '/etc/udev/scripts.d/battery-power.sh'
+  sudo mkdir -p '/etc/udev/scripts.d' && sudo -e '/etc/udev/scripts.d/battery-power.sh' && sudo restorecon -F -I -R '/etc/udev/scripts.d' && sudo chmod +x '/etc/udev/scripts.d/battery-power.sh'
 <code>
 #!/bin/bash
-# Battery
+'/usr/bin/x86_energy_perf_policy' --all 'balance-power' --turbo-enable '0' --force
-x86_energy_perf_policy --all 'balance-power' --turbo-enable '0' --force
 # End</code>
-  '/etc/udev/scripts.d/battery-power.sh'
 ===== udev Rule =====
-  sudo -e '/etc/udev/rules.d/99-power.rules' && sudo restorecon -F -I -v '/etc/udev/rules.d/99-power.rules' && sudo udevadm control --reload
+  sudo -e '/etc/udev/rules.d/99-power.rules' && sudo restorecon -F -I '/etc/udev/rules.d/99-power.rules' && sudo udevadm control --reload
 <code>
 # AC
-SUBSYSTEM=="power_supply", ATTR{online}=="1", RUN+="/etc/udev/scripts.d/ac-power.sh"
+ACTION=="add|change", SUBSYSTEM=="power_supply", ATTRS{type}=="Mains", ATTRS{online}=="1", RUN+="/etc/udev/scripts.d/ac-power.sh"
 # Battery
-SUBSYSTEM=="power_supply", ATTR{online}=="0", RUN+="/etc/udev/scripts.d/battery-power.sh"
+ACTION=="add|change", SUBSYSTEM=="power_supply", ATTRS{type}=="Mains", ATTRS{online}=="0", RUN+="/etc/udev/scripts.d/battery-power.sh"
 # End</code>
@@ Line 65: / Line 65: @@
 ===== Check =====
-  * If plugged-in, should report something like ''Write to unrecognized MSR 0x770 by x86_energy_perf'' 1-second/early boot
+  * Should report something like ''Write to unrecognized MSR 0x770 by x86_energy_perf'' early boot and on AC hot-plug
   sudo dmesg | grep 'MSR'
+  watch --interval '0.5' grep \'cpu MHz\' '/proc/cpuinfo'