Article 5FB3P My Ivy Bridge CPU isn't using the scaling governor set for Intel CPUs in rc.cpufreq.

My Ivy Bridge CPU isn't using the scaling governor set for Intel CPUs in rc.cpufreq.

by
RadicalDreamer
from LinuxQuestions.org on (#5FB3P)
Code:bash-5.1$ uname -srvmpi
Linux 5.10.23 #1 SMP Thu Mar 11 17:00:08 CST 2021 x86_64 Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz GenuineIntel
rc.cpufreq:
Code:SCALING_GOVERNOR=ondemand

# For CPUs using intel_pstate, always use the performance governor. This also
# provides power savings on Intel processors while avoiding the ramp-up lag
# present when using the powersave governor (which is the default if ondemand
# is requested on these machines):
if [ "$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver 2> /dev/null)" = "intel_pstate" ];
then
SCALING_GOVERNOR="performance"
fi
Code:bash-5.1$ cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
driver: intel_cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 20.0 us.
hardware limits: 1.60 GHz - 3.90 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 1.80 GHz and 3.90 GHz.
The governor "ondemand" may decide which speed to use
within this range.Code:bash-5.1# sh /etc/rc.d/rc.cpufreq
Enabled CPU frequency scaling governor: ondemandThen I set the scaling governor to powersave.

rc.cpufreq:
Code:SCALING_GOVERNOR=powersave

# For CPUs using intel_pstate, always use the performance governor. This also
# provides power savings on Intel processors while avoiding the ramp-up lag
# present when using the powersave governor (which is the default if ondemand
# is requested on these machines):
if [ "$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver 2> /dev/null)" = "intel_pstate" ];
then
SCALING_GOVERNOR="performance"
fi
Code:bash-5.1# sh /etc/rc.d/rc.cpufreq
Enabled CPU frequency scaling governor: powersaveCode:bash-5.1# cpufreq-info
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
driver: intel_cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 20.0 us.
hardware limits: 1.60 GHz - 3.90 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 1.80 GHz and 3.90 GHz.
The governor "powersave" may decide which speed to use
within this range.latest?d=yIl2AUoC8zA latest?i=HBytVt-90Pk:3Z35BETawRY:F7zBnMy latest?i=HBytVt-90Pk:3Z35BETawRY:V_sGLiP latest?d=qj6IDK7rITs latest?i=HBytVt-90Pk:3Z35BETawRY:gIN9vFwHBytVt-90Pk
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