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* [PATCH 1/3] initscripts: Automatically enable CPU power saving features
@ 2025-07-17 17:30 Michael Tremer
  2025-07-17 17:30 ` [PATCH 2/3] cpufrequtils: Drop package Michael Tremer
                   ` (2 more replies)
  0 siblings, 3 replies; 7+ messages in thread
From: Michael Tremer @ 2025-07-17 17:30 UTC (permalink / raw)
  To: development; +Cc: Michael Tremer

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
-- 
2.39.5



^ permalink raw reply	[flat|nested] 7+ messages in thread
end of thread, other threads:[~2025-07-21 20:32 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2025-07-17 17:30 [PATCH 1/3] initscripts: Automatically enable CPU power saving features Michael Tremer
2025-07-17 17:30 ` [PATCH 2/3] cpufrequtils: Drop package Michael Tremer
2025-07-17 17:30 ` [PATCH 3/3] cpufrequtils: Drop unused patches Michael Tremer
2025-07-20 14:05 ` [PATCH 1/3] initscripts: Automatically enable CPU power saving features Charles Brown
2025-07-21  9:10   ` Michael Tremer
2025-07-21 19:17     ` Re[2]: " Jon Murphy
     [not found]     ` <E24211ED-C10E-4AAD-A8F0-BC61DF59FD29@me.com>
2025-07-21 20:31       ` Charles Brown

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