From: Michael Tremer <michael.tremer@ipfire.org>
To: development@lists.ipfire.org
Cc: Michael Tremer <michael.tremer@ipfire.org>
Subject: [PATCH 1/3] initscripts: Automatically enable CPU power saving features
Date: Thu, 17 Jul 2025 17:30:30 +0000 [thread overview]
Message-ID: <20250717173032.3442618-1-michael.tremer@ipfire.org> (raw)
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
next reply other threads:[~2025-07-17 17:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-17 17:30 Michael Tremer [this message]
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
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