[1/3] initscripts: Automatically enable CPU power saving features

Message ID 20250717173032.3442618-1-michael.tremer@ipfire.org
State Staged
Commit 331d249140e4224834b2b9ea8a340cdfce4f81c7
Headers
Series [1/3] initscripts: Automatically enable CPU power saving features |

Commit Message

Michael Tremer 17 Jul 2025, 5:30 p.m. UTC
This is a cleaned up implementation of the script that was previously
packaged in the cpufrequtils package.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---
 config/rootfiles/common/aarch64/initscripts |  2 +
 config/rootfiles/common/riscv64/initscripts |  2 +
 config/rootfiles/common/x86_64/initscripts  |  2 +
 lfs/initscripts                             |  1 +
 src/initscripts/system/cpupower             | 89 +++++++++++++++++++++
 5 files changed, 96 insertions(+)
 create mode 100644 src/initscripts/system/cpupower
  

Comments

Charles Brown 20 Jul 2025, 2:05 p.m. UTC | #1
Just curious about find_governor() ... how/where would the variable 
"GOVERNOR" be getting configured?

On 7/17/2025 12:30 PM, Michael Tremer wrote:
> This is a cleaned up implementation of the script that was previously
> packaged in the cpufrequtils package.
>
> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
> ---
>   config/rootfiles/common/aarch64/initscripts |  2 +
>   config/rootfiles/common/riscv64/initscripts |  2 +
>   config/rootfiles/common/x86_64/initscripts  |  2 +
>   lfs/initscripts                             |  1 +
>   src/initscripts/system/cpupower             | 89 +++++++++++++++++++++
>   5 files changed, 96 insertions(+)
>   create mode 100644 src/initscripts/system/cpupower
>
> diff --git a/config/rootfiles/common/aarch64/initscripts b/config/rootfiles/common/aarch64/initscripts
> index 1fd1f076f..fa43d4fe1 100644
> --- a/config/rootfiles/common/aarch64/initscripts
> +++ b/config/rootfiles/common/aarch64/initscripts
> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>   etc/rc.d/init.d/connectd
>   etc/rc.d/init.d/conntrackd
>   etc/rc.d/init.d/console
> +etc/rc.d/init.d/cpupower
>   etc/rc.d/init.d/dhcp
>   etc/rc.d/init.d/dhcrelay
>   etc/rc.d/init.d/fcron
> @@ -183,6 +184,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>   etc/rc.d/rcsysinit.d/S43mounttmpfs
>   etc/rc.d/rcsysinit.d/S44smt
>   etc/rc.d/rcsysinit.d/S45udev_retry
> +etc/rc.d/rcsysinit.d/S46cpupower
>   etc/rc.d/rcsysinit.d/S50cleanfs
>   etc/rc.d/rcsysinit.d/S60setclock
>   etc/rc.d/rcsysinit.d/S70console
> diff --git a/config/rootfiles/common/riscv64/initscripts b/config/rootfiles/common/riscv64/initscripts
> index 694207257..a31359134 100644
> --- a/config/rootfiles/common/riscv64/initscripts
> +++ b/config/rootfiles/common/riscv64/initscripts
> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>   etc/rc.d/init.d/connectd
>   etc/rc.d/init.d/conntrackd
>   etc/rc.d/init.d/console
> +etc/rc.d/init.d/cpupower
>   etc/rc.d/init.d/dhcp
>   etc/rc.d/init.d/dhcrelay
>   etc/rc.d/init.d/fcron
> @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>   etc/rc.d/rcsysinit.d/S43mounttmpfs
>   etc/rc.d/rcsysinit.d/S44smt
>   etc/rc.d/rcsysinit.d/S45udev_retry
> +etc/rc.d/rcsysinit.d/S46cpupower
>   etc/rc.d/rcsysinit.d/S50cleanfs
>   etc/rc.d/rcsysinit.d/S60setclock
>   etc/rc.d/rcsysinit.d/S70console
> diff --git a/config/rootfiles/common/x86_64/initscripts b/config/rootfiles/common/x86_64/initscripts
> index 694207257..a31359134 100644
> --- a/config/rootfiles/common/x86_64/initscripts
> +++ b/config/rootfiles/common/x86_64/initscripts
> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>   etc/rc.d/init.d/connectd
>   etc/rc.d/init.d/conntrackd
>   etc/rc.d/init.d/console
> +etc/rc.d/init.d/cpupower
>   etc/rc.d/init.d/dhcp
>   etc/rc.d/init.d/dhcrelay
>   etc/rc.d/init.d/fcron
> @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>   etc/rc.d/rcsysinit.d/S43mounttmpfs
>   etc/rc.d/rcsysinit.d/S44smt
>   etc/rc.d/rcsysinit.d/S45udev_retry
> +etc/rc.d/rcsysinit.d/S46cpupower
>   etc/rc.d/rcsysinit.d/S50cleanfs
>   etc/rc.d/rcsysinit.d/S60setclock
>   etc/rc.d/rcsysinit.d/S70console
> diff --git a/lfs/initscripts b/lfs/initscripts
> index 99fe2f1be..49215c0ae 100644
> --- a/lfs/initscripts
> +++ b/lfs/initscripts
> @@ -176,6 +176,7 @@ $(TARGET) :
>   	ln -sf ../init.d/mounttmpfs		/etc/rc.d/rcsysinit.d/S43mounttmpfs
>   	ln -sf ../init.d/smt			/etc/rc.d/rcsysinit.d/S44smt
>   	ln -sf ../init.d/udev_retry		/etc/rc.d/rcsysinit.d/S45udev_retry
> +	ln -sf ../init.d/cpupower		/etc/rc.d/rcsysinit.d/S46cpupower
>   	ln -sf ../init.d/cleanfs		/etc/rc.d/rcsysinit.d/S50cleanfs
>   	ln -sf ../init.d/setclock		/etc/rc.d/rcsysinit.d/S60setclock
>   	ln -sf ../init.d/console		/etc/rc.d/rcsysinit.d/S70console
> diff --git a/src/initscripts/system/cpupower b/src/initscripts/system/cpupower
> new file mode 100644
> index 000000000..82b62a89b
> --- /dev/null
> +++ b/src/initscripts/system/cpupower
> @@ -0,0 +1,89 @@
> +#!/bin/sh
> +###############################################################################
> +#                                                                             #
> +# IPFire.org - A linux based firewall                                         #
> +# Copyright (C) 2025 IPFire Team  <info@ipfire.org>                           #
> +#                                                                             #
> +# This program is free software: you can redistribute it and/or modify        #
> +# it under the terms of the GNU General Public License as published by        #
> +# the Free Software Foundation, either version 3 of the License, or           #
> +# (at your option) any later version.                                         #
> +#                                                                             #
> +# This program is distributed in the hope that it will be useful,             #
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
> +# GNU General Public License for more details.                                #
> +#                                                                             #
> +# You should have received a copy of the GNU General Public License           #
> +# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
> +#                                                                             #
> +###############################################################################
> +
> +. /etc/sysconfig/rc
> +. ${rc_functions}
> +
> +# Load the configuration if it exists
> +if [ -r "/etc/sysconfig/cpupower" ]; then
> +	. /etc/sysconfig/cpupower
> +fi
> +
> +# This function returns which governor to use
> +find_governor() {
> +	local driver
> +
> +	# If a governor has been configured, we just use that one
> +	if [ -n "${GOVERNOR}" ]; then
> +		echo "${GOVERNOR}"
> +		return 0
> +	fi
> +
> +	# Determine the driver
> +	if [ -r "/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver" ]; then
> +		driver="$(</sys/devices/system/cpu/cpu0/cpufreq/scaling_driver)"
> +	fi
> +
> +	# Decide which governor to use based on the driver
> +	case "${driver}" in
> +		# If the driver could not be detected, we won't use anything
> +		"")
> +			;;
> +
> +		# Intel P-State only supports performace and powersave. The latter
> +		# is rather implemented like ondemand in other cases.
> +		intel_pstate)
> +			echo "powersave"
> +			;;
> +
> +		# For everything else use schedutil
> +		*)
> +			echo "schedutil"
> +			;;
> +	esac
> +
> +	return 0
> +}
> +
> +set_governor() {
> +	# Find the governor to use
> +	local governor="$(find_governor)"
> +
> +	# If we could not detect a governor we don't have anything to do
> +	if [ -z "${governor}" ]; then
> +		return 0
> +	fi
> +
> +	# Set the governor
> +	cpupower frequency-set --governor "${governor}" >/dev/null
> +}
> +
> +case "${1}" in
> +	start)
> +		boot_mesg "Enabling CPU Power Saving Features..."
> +		set_governor
> +		evaluate_retval
> +		;;
> +	*)
> +		echo "Usage: ${0} {start}"
> +		exit 1
> +		;;
> +esac
  
Michael Tremer 21 Jul 2025, 9:10 a.m. UTC | #2
Hello Charles,

Thanks for your question.

The variable is by default not set. But at the top of the file, we optionally load a configuration file. So if someone wants to hard-code a custom governor (even if it is just for testing), they can set the variable in /etc/sysconfig/cpupower.

-Michael

> On 20 Jul 2025, at 15:05, Charles Brown <cab_77573@yahoo.com> wrote:
> 
> Just curious about find_governor() ... how/where would the variable "GOVERNOR" be getting configured?
> 
> On 7/17/2025 12:30 PM, Michael Tremer wrote:
>> This is a cleaned up implementation of the script that was previously
>> packaged in the cpufrequtils package.
>> 
>> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
>> ---
>>  config/rootfiles/common/aarch64/initscripts |  2 +
>>  config/rootfiles/common/riscv64/initscripts |  2 +
>>  config/rootfiles/common/x86_64/initscripts  |  2 +
>>  lfs/initscripts                             |  1 +
>>  src/initscripts/system/cpupower             | 89 +++++++++++++++++++++
>>  5 files changed, 96 insertions(+)
>>  create mode 100644 src/initscripts/system/cpupower
>> 
>> diff --git a/config/rootfiles/common/aarch64/initscripts b/config/rootfiles/common/aarch64/initscripts
>> index 1fd1f076f..fa43d4fe1 100644
>> --- a/config/rootfiles/common/aarch64/initscripts
>> +++ b/config/rootfiles/common/aarch64/initscripts
>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>  etc/rc.d/init.d/connectd
>>  etc/rc.d/init.d/conntrackd
>>  etc/rc.d/init.d/console
>> +etc/rc.d/init.d/cpupower
>>  etc/rc.d/init.d/dhcp
>>  etc/rc.d/init.d/dhcrelay
>>  etc/rc.d/init.d/fcron
>> @@ -183,6 +184,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>  etc/rc.d/rcsysinit.d/S43mounttmpfs
>>  etc/rc.d/rcsysinit.d/S44smt
>>  etc/rc.d/rcsysinit.d/S45udev_retry
>> +etc/rc.d/rcsysinit.d/S46cpupower
>>  etc/rc.d/rcsysinit.d/S50cleanfs
>>  etc/rc.d/rcsysinit.d/S60setclock
>>  etc/rc.d/rcsysinit.d/S70console
>> diff --git a/config/rootfiles/common/riscv64/initscripts b/config/rootfiles/common/riscv64/initscripts
>> index 694207257..a31359134 100644
>> --- a/config/rootfiles/common/riscv64/initscripts
>> +++ b/config/rootfiles/common/riscv64/initscripts
>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>  etc/rc.d/init.d/connectd
>>  etc/rc.d/init.d/conntrackd
>>  etc/rc.d/init.d/console
>> +etc/rc.d/init.d/cpupower
>>  etc/rc.d/init.d/dhcp
>>  etc/rc.d/init.d/dhcrelay
>>  etc/rc.d/init.d/fcron
>> @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>  etc/rc.d/rcsysinit.d/S43mounttmpfs
>>  etc/rc.d/rcsysinit.d/S44smt
>>  etc/rc.d/rcsysinit.d/S45udev_retry
>> +etc/rc.d/rcsysinit.d/S46cpupower
>>  etc/rc.d/rcsysinit.d/S50cleanfs
>>  etc/rc.d/rcsysinit.d/S60setclock
>>  etc/rc.d/rcsysinit.d/S70console
>> diff --git a/config/rootfiles/common/x86_64/initscripts b/config/rootfiles/common/x86_64/initscripts
>> index 694207257..a31359134 100644
>> --- a/config/rootfiles/common/x86_64/initscripts
>> +++ b/config/rootfiles/common/x86_64/initscripts
>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>  etc/rc.d/init.d/connectd
>>  etc/rc.d/init.d/conntrackd
>>  etc/rc.d/init.d/console
>> +etc/rc.d/init.d/cpupower
>>  etc/rc.d/init.d/dhcp
>>  etc/rc.d/init.d/dhcrelay
>>  etc/rc.d/init.d/fcron
>> @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>  etc/rc.d/rcsysinit.d/S43mounttmpfs
>>  etc/rc.d/rcsysinit.d/S44smt
>>  etc/rc.d/rcsysinit.d/S45udev_retry
>> +etc/rc.d/rcsysinit.d/S46cpupower
>>  etc/rc.d/rcsysinit.d/S50cleanfs
>>  etc/rc.d/rcsysinit.d/S60setclock
>>  etc/rc.d/rcsysinit.d/S70console
>> diff --git a/lfs/initscripts b/lfs/initscripts
>> index 99fe2f1be..49215c0ae 100644
>> --- a/lfs/initscripts
>> +++ b/lfs/initscripts
>> @@ -176,6 +176,7 @@ $(TARGET) :
>>   ln -sf ../init.d/mounttmpfs /etc/rc.d/rcsysinit.d/S43mounttmpfs
>>   ln -sf ../init.d/smt /etc/rc.d/rcsysinit.d/S44smt
>>   ln -sf ../init.d/udev_retry /etc/rc.d/rcsysinit.d/S45udev_retry
>> + ln -sf ../init.d/cpupower /etc/rc.d/rcsysinit.d/S46cpupower
>>   ln -sf ../init.d/cleanfs /etc/rc.d/rcsysinit.d/S50cleanfs
>>   ln -sf ../init.d/setclock /etc/rc.d/rcsysinit.d/S60setclock
>>   ln -sf ../init.d/console /etc/rc.d/rcsysinit.d/S70console
>> diff --git a/src/initscripts/system/cpupower b/src/initscripts/system/cpupower
>> new file mode 100644
>> index 000000000..82b62a89b
>> --- /dev/null
>> +++ b/src/initscripts/system/cpupower
>> @@ -0,0 +1,89 @@
>> +#!/bin/sh
>> +###############################################################################
>> +#                                                                             #
>> +# IPFire.org - A linux based firewall                                         #
>> +# Copyright (C) 2025 IPFire Team  <info@ipfire.org>                           #
>> +#                                                                             #
>> +# This program is free software: you can redistribute it and/or modify        #
>> +# it under the terms of the GNU General Public License as published by        #
>> +# the Free Software Foundation, either version 3 of the License, or           #
>> +# (at your option) any later version.                                         #
>> +#                                                                             #
>> +# This program is distributed in the hope that it will be useful,             #
>> +# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
>> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
>> +# GNU General Public License for more details.                                #
>> +#                                                                             #
>> +# You should have received a copy of the GNU General Public License           #
>> +# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
>> +#                                                                             #
>> +###############################################################################
>> +
>> +. /etc/sysconfig/rc
>> +. ${rc_functions}
>> +
>> +# Load the configuration if it exists
>> +if [ -r "/etc/sysconfig/cpupower" ]; then
>> + . /etc/sysconfig/cpupower
>> +fi
>> +
>> +# This function returns which governor to use
>> +find_governor() {
>> + local driver
>> +
>> + # If a governor has been configured, we just use that one
>> + if [ -n "${GOVERNOR}" ]; then
>> + echo "${GOVERNOR}"
>> + return 0
>> + fi
>> +
>> + # Determine the driver
>> + if [ -r "/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver" ]; then
>> + driver="$(</sys/devices/system/cpu/cpu0/cpufreq/scaling_driver)"
>> + fi
>> +
>> + # Decide which governor to use based on the driver
>> + case "${driver}" in
>> + # If the driver could not be detected, we won't use anything
>> + "")
>> + ;;
>> +
>> + # Intel P-State only supports performace and powersave. The latter
>> + # is rather implemented like ondemand in other cases.
>> + intel_pstate)
>> + echo "powersave"
>> + ;;
>> +
>> + # For everything else use schedutil
>> + *)
>> + echo "schedutil"
>> + ;;
>> + esac
>> +
>> + return 0
>> +}
>> +
>> +set_governor() {
>> + # Find the governor to use
>> + local governor="$(find_governor)"
>> +
>> + # If we could not detect a governor we don't have anything to do
>> + if [ -z "${governor}" ]; then
>> + return 0
>> + fi
>> +
>> + # Set the governor
>> + cpupower frequency-set --governor "${governor}" >/dev/null
>> +}
>> +
>> +case "${1}" in
>> + start)
>> + boot_mesg "Enabling CPU Power Saving Features..."
>> + set_governor
>> + evaluate_retval
>> + ;;
>> + *)
>> + echo "Usage: ${0} {start}"
>> + exit 1
>> + ;;
>> +esac
>
  
Jon Murphy 21 Jul 2025, 7:17 p.m. UTC | #3
I added a wiki page:  <https://www.ipfire.org/docs/pkgs/cpupower>

Just curious about find_governor() ... how/where would the variable 
"GOVERNOR" be getting configured?

Charles - If/when you make a change, please add your changes to the 
above Wiki page as an example.


Jon


------ Original Message ------
From "Michael Tremer" <michael.tremer@ipfire.org>
To "Charles Brown" <cab_77573@yahoo.com>
Cc development@lists.ipfire.org
Date 7/21/2025 4:10:56 AM
Subject Re: [PATCH 1/3] initscripts: Automatically enable CPU power 
saving features

>Hello Charles,
>
>Thanks for your question.
>
>The variable is by default not set. But at the top of the file, we optionally load a configuration file. So if someone wants to hard-code a custom governor (even if it is just for testing), they can set the variable in /etc/sysconfig/cpupower.
>
>-Michael
>
>>  On 20 Jul 2025, at 15:05, Charles Brown <cab_77573@yahoo.com> wrote:
>>
>>  Just curious about find_governor() ... how/where would the variable "GOVERNOR" be getting configured?
>>
>>  On 7/17/2025 12:30 PM, Michael Tremer wrote:
>>>  This is a cleaned up implementation of the script that was previously
>>>  packaged in the cpufrequtils package.
>>>
>>>  Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
>>>  ---
>>>   config/rootfiles/common/aarch64/initscripts |  2 +
>>>   config/rootfiles/common/riscv64/initscripts |  2 +
>>>   config/rootfiles/common/x86_64/initscripts  |  2 +
>>>   lfs/initscripts                             |  1 +
>>>   src/initscripts/system/cpupower             | 89 +++++++++++++++++++++
>>>   5 files changed, 96 insertions(+)
>>>   create mode 100644 src/initscripts/system/cpupower
>>>
>>>  diff --git a/config/rootfiles/common/aarch64/initscripts b/config/rootfiles/common/aarch64/initscripts
>>>  index 1fd1f076f..fa43d4fe1 100644
>>>  --- a/config/rootfiles/common/aarch64/initscripts
>>>  +++ b/config/rootfiles/common/aarch64/initscripts
>>>  @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>   etc/rc.d/init.d/connectd
>>>   etc/rc.d/init.d/conntrackd
>>>   etc/rc.d/init.d/console
>>>  +etc/rc.d/init.d/cpupower
>>>   etc/rc.d/init.d/dhcp
>>>   etc/rc.d/init.d/dhcrelay
>>>   etc/rc.d/init.d/fcron
>>>  @@ -183,6 +184,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>   etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>   etc/rc.d/rcsysinit.d/S44smt
>>>   etc/rc.d/rcsysinit.d/S45udev_retry
>>>  +etc/rc.d/rcsysinit.d/S46cpupower
>>>   etc/rc.d/rcsysinit.d/S50cleanfs
>>>   etc/rc.d/rcsysinit.d/S60setclock
>>>   etc/rc.d/rcsysinit.d/S70console
>>>  diff --git a/config/rootfiles/common/riscv64/initscripts b/config/rootfiles/common/riscv64/initscripts
>>>  index 694207257..a31359134 100644
>>>  --- a/config/rootfiles/common/riscv64/initscripts
>>>  +++ b/config/rootfiles/common/riscv64/initscripts
>>>  @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>   etc/rc.d/init.d/connectd
>>>   etc/rc.d/init.d/conntrackd
>>>   etc/rc.d/init.d/console
>>>  +etc/rc.d/init.d/cpupower
>>>   etc/rc.d/init.d/dhcp
>>>   etc/rc.d/init.d/dhcrelay
>>>   etc/rc.d/init.d/fcron
>>>  @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>   etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>   etc/rc.d/rcsysinit.d/S44smt
>>>   etc/rc.d/rcsysinit.d/S45udev_retry
>>>  +etc/rc.d/rcsysinit.d/S46cpupower
>>>   etc/rc.d/rcsysinit.d/S50cleanfs
>>>   etc/rc.d/rcsysinit.d/S60setclock
>>>   etc/rc.d/rcsysinit.d/S70console
>>>  diff --git a/config/rootfiles/common/x86_64/initscripts b/config/rootfiles/common/x86_64/initscripts
>>>  index 694207257..a31359134 100644
>>>  --- a/config/rootfiles/common/x86_64/initscripts
>>>  +++ b/config/rootfiles/common/x86_64/initscripts
>>>  @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>   etc/rc.d/init.d/connectd
>>>   etc/rc.d/init.d/conntrackd
>>>   etc/rc.d/init.d/console
>>>  +etc/rc.d/init.d/cpupower
>>>   etc/rc.d/init.d/dhcp
>>>   etc/rc.d/init.d/dhcrelay
>>>   etc/rc.d/init.d/fcron
>>>  @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>   etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>   etc/rc.d/rcsysinit.d/S44smt
>>>   etc/rc.d/rcsysinit.d/S45udev_retry
>>>  +etc/rc.d/rcsysinit.d/S46cpupower
>>>   etc/rc.d/rcsysinit.d/S50cleanfs
>>>   etc/rc.d/rcsysinit.d/S60setclock
>>>   etc/rc.d/rcsysinit.d/S70console
>>>  diff --git a/lfs/initscripts b/lfs/initscripts
>>>  index 99fe2f1be..49215c0ae 100644
>>>  --- a/lfs/initscripts
>>>  +++ b/lfs/initscripts
>>>  @@ -176,6 +176,7 @@ $(TARGET) :
>>>    ln -sf ../init.d/mounttmpfs /etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>    ln -sf ../init.d/smt /etc/rc.d/rcsysinit.d/S44smt
>>>    ln -sf ../init.d/udev_retry /etc/rc.d/rcsysinit.d/S45udev_retry
>>>  + ln -sf ../init.d/cpupower /etc/rc.d/rcsysinit.d/S46cpupower
>>>    ln -sf ../init.d/cleanfs /etc/rc.d/rcsysinit.d/S50cleanfs
>>>    ln -sf ../init.d/setclock /etc/rc.d/rcsysinit.d/S60setclock
>>>    ln -sf ../init.d/console /etc/rc.d/rcsysinit.d/S70console
>>>  diff --git a/src/initscripts/system/cpupower b/src/initscripts/system/cpupower
>>>  new file mode 100644
>>>  index 000000000..82b62a89b
>>>  --- /dev/null
>>>  +++ b/src/initscripts/system/cpupower
>>>  @@ -0,0 +1,89 @@
>>>  +#!/bin/sh
>>>  +###############################################################################
>>>  +#                                                                             #
>>>  +# IPFire.org - A linux based firewall                                         #
>>>  +# Copyright (C) 2025 IPFire Team  <info@ipfire.org>                           #
>>>  +#                                                                             #
>>>  +# This program is free software: you can redistribute it and/or modify        #
>>>  +# it under the terms of the GNU General Public License as published by        #
>>>  +# the Free Software Foundation, either version 3 of the License, or           #
>>>  +# (at your option) any later version.                                         #
>>>  +#                                                                             #
>>>  +# This program is distributed in the hope that it will be useful,             #
>>>  +# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
>>>  +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
>>>  +# GNU General Public License for more details.                                #
>>>  +#                                                                             #
>>>  +# You should have received a copy of the GNU General Public License           #
>>>  +# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
>>>  +#                                                                             #
>>>  +###############################################################################
>>>  +
>>>  +. /etc/sysconfig/rc
>>>  +. ${rc_functions}
>>>  +
>>>  +# Load the configuration if it exists
>>>  +if [ -r "/etc/sysconfig/cpupower" ]; then
>>>  + . /etc/sysconfig/cpupower
>>>  +fi
>>>  +
>>>  +# This function returns which governor to use
>>>  +find_governor() {
>>>  + local driver
>>>  +
>>>  + # If a governor has been configured, we just use that one
>>>  + if [ -n "${GOVERNOR}" ]; then
>>>  + echo "${GOVERNOR}"
>>>  + return 0
>>>  + fi
>>>  +
>>>  + # Determine the driver
>>>  + if [ -r "/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver" ]; then
>>>  + driver="$(</sys/devices/system/cpu/cpu0/cpufreq/scaling_driver)"
>>>  + fi
>>>  +
>>>  + # Decide which governor to use based on the driver
>>>  + case "${driver}" in
>>>  + # If the driver could not be detected, we won't use anything
>>>  + "")
>>>  + ;;
>>>  +
>>>  + # Intel P-State only supports performace and powersave. The latter
>>>  + # is rather implemented like ondemand in other cases.
>>>  + intel_pstate)
>>>  + echo "powersave"
>>>  + ;;
>>>  +
>>>  + # For everything else use schedutil
>>>  + *)
>>>  + echo "schedutil"
>>>  + ;;
>>>  + esac
>>>  +
>>>  + return 0
>>>  +}
>>>  +
>>>  +set_governor() {
>>>  + # Find the governor to use
>>>  + local governor="$(find_governor)"
>>>  +
>>>  + # If we could not detect a governor we don't have anything to do
>>>  + if [ -z "${governor}" ]; then
>>>  + return 0
>>>  + fi
>>>  +
>>>  + # Set the governor
>>>  + cpupower frequency-set --governor "${governor}" >/dev/null
>>>  +}
>>>  +
>>>  +case "${1}" in
>>>  + start)
>>>  + boot_mesg "Enabling CPU Power Saving Features..."
>>>  + set_governor
>>>  + evaluate_retval
>>>  + ;;
>>>  + *)
>>>  + echo "Usage: ${0} {start}"
>>>  + exit 1
>>>  + ;;
>>>  +esac
>>
>
>
  
Charles Brown 21 Jul 2025, 8:31 p.m. UTC | #4
Hi Jon,  I am perfectly satisfied with Michael's default implementation 
in  src/initscripts/system/cpupower.
I see no personal need to override that in |/etc/sysconfig/cpupower.|
-cab

On 7/21/2025 2:15 PM, murphy.jon@me.com wrote:
> I added a wiki page:  <https://www.ipfire.org/docs/pkgs/cpupower>
>
>>> Just curious about find_governor() ... how/where would the variable 
>>> "GOVERNOR" be getting configured?
>
> Charles - If/when you make a change, please add your changes to the 
> above Wiki page as an example.
>
>
> Jon
>
>
>> On Jul 21, 2025, at 4:10 AM, Michael Tremer 
>> <michael.tremer@ipfire.org> wrote:
>>
>> Hello Charles,
>>
>> Thanks for your question.
>>
>> The variable is by default not set. But at the top of the file, we 
>> optionally load a configuration file. So if someone wants to 
>> hard-code a custom governor (even if it is just for testing), they 
>> can set the variable in /etc/sysconfig/cpupower.
>>
>> -Michael
>>
>>> On 20 Jul 2025, at 15:05, Charles Brown <cab_77573@yahoo.com> wrote:
>>>
>>> Just curious about find_governor() ... how/where would the variable 
>>> "GOVERNOR" be getting configured?
>>>
>>> On 7/17/2025 12:30 PM, Michael Tremer wrote:
>>>> This is a cleaned up implementation of the script that was previously
>>>> packaged in the cpufrequtils package.
>>>>
>>>> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
>>>> ---
>>>> config/rootfiles/common/aarch64/initscripts |  2 +
>>>> config/rootfiles/common/riscv64/initscripts |  2 +
>>>> config/rootfiles/common/x86_64/initscripts  |  2 +
>>>> lfs/initscripts                             |  1 +
>>>> src/initscripts/system/cpupower             | 89 +++++++++++++++++++++
>>>> 5 files changed, 96 insertions(+)
>>>> create mode 100644 src/initscripts/system/cpupower
>>>>
>>>> diff --git a/config/rootfiles/common/aarch64/initscripts 
>>>> b/config/rootfiles/common/aarch64/initscripts
>>>> index 1fd1f076f..fa43d4fe1 100644
>>>> --- a/config/rootfiles/common/aarch64/initscripts
>>>> +++ b/config/rootfiles/common/aarch64/initscripts
>>>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>> etc/rc.d/init.d/connectd
>>>> etc/rc.d/init.d/conntrackd
>>>> etc/rc.d/init.d/console
>>>> +etc/rc.d/init.d/cpupower
>>>> etc/rc.d/init.d/dhcp
>>>> etc/rc.d/init.d/dhcrelay
>>>> etc/rc.d/init.d/fcron
>>>> @@ -183,6 +184,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>> etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>> etc/rc.d/rcsysinit.d/S44smt
>>>> etc/rc.d/rcsysinit.d/S45udev_retry
>>>> +etc/rc.d/rcsysinit.d/S46cpupower
>>>> etc/rc.d/rcsysinit.d/S50cleanfs
>>>> etc/rc.d/rcsysinit.d/S60setclock
>>>> etc/rc.d/rcsysinit.d/S70console
>>>> diff --git a/config/rootfiles/common/riscv64/initscripts 
>>>> b/config/rootfiles/common/riscv64/initscripts
>>>> index 694207257..a31359134 100644
>>>> --- a/config/rootfiles/common/riscv64/initscripts
>>>> +++ b/config/rootfiles/common/riscv64/initscripts
>>>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>> etc/rc.d/init.d/connectd
>>>> etc/rc.d/init.d/conntrackd
>>>> etc/rc.d/init.d/console
>>>> +etc/rc.d/init.d/cpupower
>>>> etc/rc.d/init.d/dhcp
>>>> etc/rc.d/init.d/dhcrelay
>>>> etc/rc.d/init.d/fcron
>>>> @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>> etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>> etc/rc.d/rcsysinit.d/S44smt
>>>> etc/rc.d/rcsysinit.d/S45udev_retry
>>>> +etc/rc.d/rcsysinit.d/S46cpupower
>>>> etc/rc.d/rcsysinit.d/S50cleanfs
>>>> etc/rc.d/rcsysinit.d/S60setclock
>>>> etc/rc.d/rcsysinit.d/S70console
>>>> diff --git a/config/rootfiles/common/x86_64/initscripts 
>>>> b/config/rootfiles/common/x86_64/initscripts
>>>> index 694207257..a31359134 100644
>>>> --- a/config/rootfiles/common/x86_64/initscripts
>>>> +++ b/config/rootfiles/common/x86_64/initscripts
>>>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>> etc/rc.d/init.d/connectd
>>>> etc/rc.d/init.d/conntrackd
>>>> etc/rc.d/init.d/console
>>>> +etc/rc.d/init.d/cpupower
>>>> etc/rc.d/init.d/dhcp
>>>> etc/rc.d/init.d/dhcrelay
>>>> etc/rc.d/init.d/fcron
>>>> @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>> etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>> etc/rc.d/rcsysinit.d/S44smt
>>>> etc/rc.d/rcsysinit.d/S45udev_retry
>>>> +etc/rc.d/rcsysinit.d/S46cpupower
>>>> etc/rc.d/rcsysinit.d/S50cleanfs
>>>> etc/rc.d/rcsysinit.d/S60setclock
>>>> etc/rc.d/rcsysinit.d/S70console
>>>> diff --git a/lfs/initscripts b/lfs/initscripts
>>>> index 99fe2f1be..49215c0ae 100644
>>>> --- a/lfs/initscripts
>>>> +++ b/lfs/initscripts
>>>> @@ -176,6 +176,7 @@ $(TARGET) :
>>>>  ln -sf ../init.d/mounttmpfs /etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>>  ln -sf ../init.d/smt /etc/rc.d/rcsysinit.d/S44smt
>>>>  ln -sf ../init.d/udev_retry /etc/rc.d/rcsysinit.d/S45udev_retry
>>>> + ln -sf ../init.d/cpupower /etc/rc.d/rcsysinit.d/S46cpupower
>>>>  ln -sf ../init.d/cleanfs /etc/rc.d/rcsysinit.d/S50cleanfs
>>>>  ln -sf ../init.d/setclock /etc/rc.d/rcsysinit.d/S60setclock
>>>>  ln -sf ../init.d/console /etc/rc.d/rcsysinit.d/S70console
>>>> diff --git a/src/initscripts/system/cpupower 
>>>> b/src/initscripts/system/cpupower
>>>> new file mode 100644
>>>> index 000000000..82b62a89b
>>>> --- /dev/null
>>>> +++ b/src/initscripts/system/cpupower
>>>> @@ -0,0 +1,89 @@
>>>> +#!/bin/sh
>>>> +###############################################################################
>>>> +# 
>>>>                                                                             #
>>>> +# IPFire.org - A linux based firewall 
>>>>                                         #
>>>> +# Copyright (C) 2025 IPFire Team  <info@ipfire.org> 
>>>>                           #
>>>> +# 
>>>>                                                                             #
>>>> +# This program is free software: you can redistribute it and/or 
>>>> modify        #
>>>> +# it under the terms of the GNU General Public License as 
>>>> published by        #
>>>> +# the Free Software Foundation, either version 3 of the License, 
>>>> or           #
>>>> +# (at your option) any later version. 
>>>>                                         #
>>>> +# 
>>>>                                                                             #
>>>> +# This program is distributed in the hope that it will be useful, 
>>>>             #
>>>> +# but WITHOUT ANY WARRANTY; without even the implied warranty of 
>>>>              #
>>>> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
>>>>               #
>>>> +# GNU General Public License for more details. 
>>>>                                #
>>>> +# 
>>>>                                                                             #
>>>> +# You should have received a copy of the GNU General Public 
>>>> License           #
>>>> +# along with this program.  If not, see 
>>>> <http://www.gnu.org/licenses/>.       #
>>>> +# 
>>>>                                                                             #
>>>> +###############################################################################
>>>> +
>>>> +. /etc/sysconfig/rc
>>>> +. ${rc_functions}
>>>> +
>>>> +# Load the configuration if it exists
>>>> +if [ -r "/etc/sysconfig/cpupower" ]; then
>>>> + . /etc/sysconfig/cpupower
>>>> +fi
>>>> +
>>>> +# This function returns which governor to use
>>>> +find_governor() {
>>>> + local driver
>>>> +
>>>> + # If a governor has been configured, we just use that one
>>>> + if [ -n "${GOVERNOR}" ]; then
>>>> + echo "${GOVERNOR}"
>>>> + return 0
>>>> + fi
>>>> +
>>>> + # Determine the driver
>>>> + if [ -r "/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver" ]; then
>>>> + driver="$(</sys/devices/system/cpu/cpu0/cpufreq/scaling_driver)"
>>>> + fi
>>>> +
>>>> + # Decide which governor to use based on the driver
>>>> + case "${driver}" in
>>>> + # If the driver could not be detected, we won't use anything
>>>> + "")
>>>> + ;;
>>>> +
>>>> + # Intel P-State only supports performace and powersave. The latter
>>>> + # is rather implemented like ondemand in other cases.
>>>> + intel_pstate)
>>>> + echo "powersave"
>>>> + ;;
>>>> +
>>>> + # For everything else use schedutil
>>>> + *)
>>>> + echo "schedutil"
>>>> + ;;
>>>> + esac
>>>> +
>>>> + return 0
>>>> +}
>>>> +
>>>> +set_governor() {
>>>> + # Find the governor to use
>>>> + local governor="$(find_governor)"
>>>> +
>>>> + # If we could not detect a governor we don't have anything to do
>>>> + if [ -z "${governor}" ]; then
>>>> + return 0
>>>> + fi
>>>> +
>>>> + # Set the governor
>>>> + cpupower frequency-set --governor "${governor}" >/dev/null
>>>> +}
>>>> +
>>>> +case "${1}" in
>>>> + start)
>>>> + boot_mesg "Enabling CPU Power Saving Features..."
>>>> + set_governor
>>>> + evaluate_retval
>>>> + ;;
>>>> + *)
>>>> + echo "Usage: ${0} {start}"
>>>> + exit 1
>>>> + ;;
>>>> +esac
>>>
>>
>>
>
> Jon
>
>
> -- 
> Jon Murphy
> murphy.jon@me.com
>
  
Michael Tremer 22 Jul 2025, 3:57 p.m. UTC | #5
Thank you Jon for creating the wiki page.

I don’t think that people will generally have to change this. This is either if the default setting is causing crashes or for testing.

-Michael

> On 21 Jul 2025, at 21:31, Charles Brown <cab_77573@yahoo.com> wrote:
> 
> Hi Jon,  I am perfectly satisfied with Michael's default implementation in  src/initscripts/system/cpupower.
> I see no personal need to override that in |/etc/sysconfig/cpupower.|
> -cab
> 
> On 7/21/2025 2:15 PM, murphy.jon@me.com wrote:
>> I added a wiki page:  <https://www.ipfire.org/docs/pkgs/cpupower>
>> 
>>>> Just curious about find_governor() ... how/where would the variable "GOVERNOR" be getting configured?
>> 
>> Charles - If/when you make a change, please add your changes to the above Wiki page as an example.
>> 
>> 
>> Jon
>> 
>> 
>>> On Jul 21, 2025, at 4:10 AM, Michael Tremer <michael.tremer@ipfire.org> wrote:
>>> 
>>> Hello Charles,
>>> 
>>> Thanks for your question.
>>> 
>>> The variable is by default not set. But at the top of the file, we optionally load a configuration file. So if someone wants to hard-code a custom governor (even if it is just for testing), they can set the variable in /etc/sysconfig/cpupower.
>>> 
>>> -Michael
>>> 
>>>> On 20 Jul 2025, at 15:05, Charles Brown <cab_77573@yahoo.com> wrote:
>>>> 
>>>> Just curious about find_governor() ... how/where would the variable "GOVERNOR" be getting configured?
>>>> 
>>>> On 7/17/2025 12:30 PM, Michael Tremer wrote:
>>>>> This is a cleaned up implementation of the script that was previously
>>>>> packaged in the cpufrequtils package.
>>>>> 
>>>>> Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
>>>>> ---
>>>>> config/rootfiles/common/aarch64/initscripts |  2 +
>>>>> config/rootfiles/common/riscv64/initscripts |  2 +
>>>>> config/rootfiles/common/x86_64/initscripts  |  2 +
>>>>> lfs/initscripts                             |  1 +
>>>>> src/initscripts/system/cpupower             | 89 +++++++++++++++++++++
>>>>> 5 files changed, 96 insertions(+)
>>>>> create mode 100644 src/initscripts/system/cpupower
>>>>> 
>>>>> diff --git a/config/rootfiles/common/aarch64/initscripts b/config/rootfiles/common/aarch64/initscripts
>>>>> index 1fd1f076f..fa43d4fe1 100644
>>>>> --- a/config/rootfiles/common/aarch64/initscripts
>>>>> +++ b/config/rootfiles/common/aarch64/initscripts
>>>>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>>> etc/rc.d/init.d/connectd
>>>>> etc/rc.d/init.d/conntrackd
>>>>> etc/rc.d/init.d/console
>>>>> +etc/rc.d/init.d/cpupower
>>>>> etc/rc.d/init.d/dhcp
>>>>> etc/rc.d/init.d/dhcrelay
>>>>> etc/rc.d/init.d/fcron
>>>>> @@ -183,6 +184,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>>> etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>>> etc/rc.d/rcsysinit.d/S44smt
>>>>> etc/rc.d/rcsysinit.d/S45udev_retry
>>>>> +etc/rc.d/rcsysinit.d/S46cpupower
>>>>> etc/rc.d/rcsysinit.d/S50cleanfs
>>>>> etc/rc.d/rcsysinit.d/S60setclock
>>>>> etc/rc.d/rcsysinit.d/S70console
>>>>> diff --git a/config/rootfiles/common/riscv64/initscripts b/config/rootfiles/common/riscv64/initscripts
>>>>> index 694207257..a31359134 100644
>>>>> --- a/config/rootfiles/common/riscv64/initscripts
>>>>> +++ b/config/rootfiles/common/riscv64/initscripts
>>>>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>>> etc/rc.d/init.d/connectd
>>>>> etc/rc.d/init.d/conntrackd
>>>>> etc/rc.d/init.d/console
>>>>> +etc/rc.d/init.d/cpupower
>>>>> etc/rc.d/init.d/dhcp
>>>>> etc/rc.d/init.d/dhcrelay
>>>>> etc/rc.d/init.d/fcron
>>>>> @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>>> etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>>> etc/rc.d/rcsysinit.d/S44smt
>>>>> etc/rc.d/rcsysinit.d/S45udev_retry
>>>>> +etc/rc.d/rcsysinit.d/S46cpupower
>>>>> etc/rc.d/rcsysinit.d/S50cleanfs
>>>>> etc/rc.d/rcsysinit.d/S60setclock
>>>>> etc/rc.d/rcsysinit.d/S70console
>>>>> diff --git a/config/rootfiles/common/x86_64/initscripts b/config/rootfiles/common/x86_64/initscripts
>>>>> index 694207257..a31359134 100644
>>>>> --- a/config/rootfiles/common/x86_64/initscripts
>>>>> +++ b/config/rootfiles/common/x86_64/initscripts
>>>>> @@ -18,6 +18,7 @@ etc/rc.d/init.d/collectd
>>>>> etc/rc.d/init.d/connectd
>>>>> etc/rc.d/init.d/conntrackd
>>>>> etc/rc.d/init.d/console
>>>>> +etc/rc.d/init.d/cpupower
>>>>> etc/rc.d/init.d/dhcp
>>>>> etc/rc.d/init.d/dhcrelay
>>>>> etc/rc.d/init.d/fcron
>>>>> @@ -182,6 +183,7 @@ etc/rc.d/rcsysinit.d/S42fsresize
>>>>> etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>>> etc/rc.d/rcsysinit.d/S44smt
>>>>> etc/rc.d/rcsysinit.d/S45udev_retry
>>>>> +etc/rc.d/rcsysinit.d/S46cpupower
>>>>> etc/rc.d/rcsysinit.d/S50cleanfs
>>>>> etc/rc.d/rcsysinit.d/S60setclock
>>>>> etc/rc.d/rcsysinit.d/S70console
>>>>> diff --git a/lfs/initscripts b/lfs/initscripts
>>>>> index 99fe2f1be..49215c0ae 100644
>>>>> --- a/lfs/initscripts
>>>>> +++ b/lfs/initscripts
>>>>> @@ -176,6 +176,7 @@ $(TARGET) :
>>>>>  ln -sf ../init.d/mounttmpfs /etc/rc.d/rcsysinit.d/S43mounttmpfs
>>>>>  ln -sf ../init.d/smt /etc/rc.d/rcsysinit.d/S44smt
>>>>>  ln -sf ../init.d/udev_retry /etc/rc.d/rcsysinit.d/S45udev_retry
>>>>> + ln -sf ../init.d/cpupower /etc/rc.d/rcsysinit.d/S46cpupower
>>>>>  ln -sf ../init.d/cleanfs /etc/rc.d/rcsysinit.d/S50cleanfs
>>>>>  ln -sf ../init.d/setclock /etc/rc.d/rcsysinit.d/S60setclock
>>>>>  ln -sf ../init.d/console /etc/rc.d/rcsysinit.d/S70console
>>>>> diff --git a/src/initscripts/system/cpupower b/src/initscripts/system/cpupower
>>>>> new file mode 100644
>>>>> index 000000000..82b62a89b
>>>>> --- /dev/null
>>>>> +++ b/src/initscripts/system/cpupower
>>>>> @@ -0,0 +1,89 @@
>>>>> +#!/bin/sh
>>>>> +###############################################################################
>>>>> +#                                                                             #
>>>>> +# IPFire.org - A linux based firewall                                         #
>>>>> +# Copyright (C) 2025 IPFire Team  <info@ipfire.org>                           #
>>>>> +#                                                                             #
>>>>> +# This program is free software: you can redistribute it and/or modify        #
>>>>> +# it under the terms of the GNU General Public License as published by        #
>>>>> +# the Free Software Foundation, either version 3 of the License, or           #
>>>>> +# (at your option) any later version.                                         #
>>>>> +#                                                                             #
>>>>> +# This program is distributed in the hope that it will be useful,             #
>>>>> +# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
>>>>> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
>>>>> +# GNU General Public License for more details.                                #
>>>>> +#                                                                             #
>>>>> +# You should have received a copy of the GNU General Public License           #
>>>>> +# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
>>>>> +#                                                                             #
>>>>> +###############################################################################
>>>>> +
>>>>> +. /etc/sysconfig/rc
>>>>> +. ${rc_functions}
>>>>> +
>>>>> +# Load the configuration if it exists
>>>>> +if [ -r "/etc/sysconfig/cpupower" ]; then
>>>>> + . /etc/sysconfig/cpupower
>>>>> +fi
>>>>> +
>>>>> +# This function returns which governor to use
>>>>> +find_governor() {
>>>>> + local driver
>>>>> +
>>>>> + # If a governor has been configured, we just use that one
>>>>> + if [ -n "${GOVERNOR}" ]; then
>>>>> + echo "${GOVERNOR}"
>>>>> + return 0
>>>>> + fi
>>>>> +
>>>>> + # Determine the driver
>>>>> + if [ -r "/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver" ]; then
>>>>> + driver="$(</sys/devices/system/cpu/cpu0/cpufreq/scaling_driver)"
>>>>> + fi
>>>>> +
>>>>> + # Decide which governor to use based on the driver
>>>>> + case "${driver}" in
>>>>> + # If the driver could not be detected, we won't use anything
>>>>> + "")
>>>>> + ;;
>>>>> +
>>>>> + # Intel P-State only supports performace and powersave. The latter
>>>>> + # is rather implemented like ondemand in other cases.
>>>>> + intel_pstate)
>>>>> + echo "powersave"
>>>>> + ;;
>>>>> +
>>>>> + # For everything else use schedutil
>>>>> + *)
>>>>> + echo "schedutil"
>>>>> + ;;
>>>>> + esac
>>>>> +
>>>>> + return 0
>>>>> +}
>>>>> +
>>>>> +set_governor() {
>>>>> + # Find the governor to use
>>>>> + local governor="$(find_governor)"
>>>>> +
>>>>> + # If we could not detect a governor we don't have anything to do
>>>>> + if [ -z "${governor}" ]; then
>>>>> + return 0
>>>>> + fi
>>>>> +
>>>>> + # Set the governor
>>>>> + cpupower frequency-set --governor "${governor}" >/dev/null
>>>>> +}
>>>>> +
>>>>> +case "${1}" in
>>>>> + start)
>>>>> + boot_mesg "Enabling CPU Power Saving Features..."
>>>>> + set_governor
>>>>> + evaluate_retval
>>>>> + ;;
>>>>> + *)
>>>>> + echo "Usage: ${0} {start}"
>>>>> + exit 1
>>>>> + ;;
>>>>> +esac
>>>> 
>>> 
>>> 
>> 
>> Jon
>> 
>> 
>> -- 
>> Jon Murphy
>> murphy.jon@me.com
>> 
>
  

Patch

diff --git a/config/rootfiles/common/aarch64/initscripts b/config/rootfiles/common/aarch64/initscripts
index 1fd1f076f..fa43d4fe1 100644
--- a/config/rootfiles/common/aarch64/initscripts
+++ b/config/rootfiles/common/aarch64/initscripts
@@ -18,6 +18,7 @@  etc/rc.d/init.d/collectd
 etc/rc.d/init.d/connectd
 etc/rc.d/init.d/conntrackd
 etc/rc.d/init.d/console
+etc/rc.d/init.d/cpupower
 etc/rc.d/init.d/dhcp
 etc/rc.d/init.d/dhcrelay
 etc/rc.d/init.d/fcron
@@ -183,6 +184,7 @@  etc/rc.d/rcsysinit.d/S42fsresize
 etc/rc.d/rcsysinit.d/S43mounttmpfs
 etc/rc.d/rcsysinit.d/S44smt
 etc/rc.d/rcsysinit.d/S45udev_retry
+etc/rc.d/rcsysinit.d/S46cpupower
 etc/rc.d/rcsysinit.d/S50cleanfs
 etc/rc.d/rcsysinit.d/S60setclock
 etc/rc.d/rcsysinit.d/S70console
diff --git a/config/rootfiles/common/riscv64/initscripts b/config/rootfiles/common/riscv64/initscripts
index 694207257..a31359134 100644
--- a/config/rootfiles/common/riscv64/initscripts
+++ b/config/rootfiles/common/riscv64/initscripts
@@ -18,6 +18,7 @@  etc/rc.d/init.d/collectd
 etc/rc.d/init.d/connectd
 etc/rc.d/init.d/conntrackd
 etc/rc.d/init.d/console
+etc/rc.d/init.d/cpupower
 etc/rc.d/init.d/dhcp
 etc/rc.d/init.d/dhcrelay
 etc/rc.d/init.d/fcron
@@ -182,6 +183,7 @@  etc/rc.d/rcsysinit.d/S42fsresize
 etc/rc.d/rcsysinit.d/S43mounttmpfs
 etc/rc.d/rcsysinit.d/S44smt
 etc/rc.d/rcsysinit.d/S45udev_retry
+etc/rc.d/rcsysinit.d/S46cpupower
 etc/rc.d/rcsysinit.d/S50cleanfs
 etc/rc.d/rcsysinit.d/S60setclock
 etc/rc.d/rcsysinit.d/S70console
diff --git a/config/rootfiles/common/x86_64/initscripts b/config/rootfiles/common/x86_64/initscripts
index 694207257..a31359134 100644
--- a/config/rootfiles/common/x86_64/initscripts
+++ b/config/rootfiles/common/x86_64/initscripts
@@ -18,6 +18,7 @@  etc/rc.d/init.d/collectd
 etc/rc.d/init.d/connectd
 etc/rc.d/init.d/conntrackd
 etc/rc.d/init.d/console
+etc/rc.d/init.d/cpupower
 etc/rc.d/init.d/dhcp
 etc/rc.d/init.d/dhcrelay
 etc/rc.d/init.d/fcron
@@ -182,6 +183,7 @@  etc/rc.d/rcsysinit.d/S42fsresize
 etc/rc.d/rcsysinit.d/S43mounttmpfs
 etc/rc.d/rcsysinit.d/S44smt
 etc/rc.d/rcsysinit.d/S45udev_retry
+etc/rc.d/rcsysinit.d/S46cpupower
 etc/rc.d/rcsysinit.d/S50cleanfs
 etc/rc.d/rcsysinit.d/S60setclock
 etc/rc.d/rcsysinit.d/S70console
diff --git a/lfs/initscripts b/lfs/initscripts
index 99fe2f1be..49215c0ae 100644
--- a/lfs/initscripts
+++ b/lfs/initscripts
@@ -176,6 +176,7 @@  $(TARGET) :
 	ln -sf ../init.d/mounttmpfs		/etc/rc.d/rcsysinit.d/S43mounttmpfs
 	ln -sf ../init.d/smt			/etc/rc.d/rcsysinit.d/S44smt
 	ln -sf ../init.d/udev_retry		/etc/rc.d/rcsysinit.d/S45udev_retry
+	ln -sf ../init.d/cpupower		/etc/rc.d/rcsysinit.d/S46cpupower
 	ln -sf ../init.d/cleanfs		/etc/rc.d/rcsysinit.d/S50cleanfs
 	ln -sf ../init.d/setclock		/etc/rc.d/rcsysinit.d/S60setclock
 	ln -sf ../init.d/console		/etc/rc.d/rcsysinit.d/S70console
diff --git a/src/initscripts/system/cpupower b/src/initscripts/system/cpupower
new file mode 100644
index 000000000..82b62a89b
--- /dev/null
+++ b/src/initscripts/system/cpupower
@@ -0,0 +1,89 @@ 
+#!/bin/sh
+###############################################################################
+#                                                                             #
+# IPFire.org - A linux based firewall                                         #
+# Copyright (C) 2025 IPFire Team  <info@ipfire.org>                           #
+#                                                                             #
+# This program is free software: you can redistribute it and/or modify        #
+# it under the terms of the GNU General Public License as published by        #
+# the Free Software Foundation, either version 3 of the License, or           #
+# (at your option) any later version.                                         #
+#                                                                             #
+# This program is distributed in the hope that it will be useful,             #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of              #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
+# GNU General Public License for more details.                                #
+#                                                                             #
+# You should have received a copy of the GNU General Public License           #
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
+#                                                                             #
+###############################################################################
+
+. /etc/sysconfig/rc
+. ${rc_functions}
+
+# Load the configuration if it exists
+if [ -r "/etc/sysconfig/cpupower" ]; then
+	. /etc/sysconfig/cpupower
+fi
+
+# This function returns which governor to use
+find_governor() {
+	local driver
+
+	# If a governor has been configured, we just use that one
+	if [ -n "${GOVERNOR}" ]; then
+		echo "${GOVERNOR}"
+		return 0
+	fi
+
+	# Determine the driver
+	if [ -r "/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver" ]; then
+		driver="$(</sys/devices/system/cpu/cpu0/cpufreq/scaling_driver)"
+	fi
+
+	# Decide which governor to use based on the driver
+	case "${driver}" in
+		# If the driver could not be detected, we won't use anything
+		"")
+			;;
+
+		# Intel P-State only supports performace and powersave. The latter
+		# is rather implemented like ondemand in other cases.
+		intel_pstate)
+			echo "powersave"
+			;;
+
+		# For everything else use schedutil
+		*)
+			echo "schedutil"
+			;;
+	esac
+
+	return 0
+}
+
+set_governor() {
+	# Find the governor to use
+	local governor="$(find_governor)"
+
+	# If we could not detect a governor we don't have anything to do
+	if [ -z "${governor}" ]; then
+		return 0
+	fi
+
+	# Set the governor
+	cpupower frequency-set --governor "${governor}" >/dev/null
+}
+
+case "${1}" in
+	start)
+		boot_mesg "Enabling CPU Power Saving Features..."
+		set_governor
+		evaluate_retval
+		;;
+	*)
+		echo "Usage: ${0} {start}"
+		exit 1
+		;;
+esac