From ed72980fd0d209879cb02e1040417547049cfa9a Mon Sep 17 00:00:00 2001
From: Erik Bershel <110455084+erik-bershel@users.noreply.github.com>
Date: Thu, 4 Dec 2025 11:36:36 +0100
Subject: [PATCH] [macOS] Disable PerfPowerServices (#13379)

---
 images/macos/scripts/build/configure-system.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/images/macos/scripts/build/configure-system.sh b/images/macos/scripts/build/configure-system.sh
index a5f86774b..f4a537a79 100644
--- a/images/macos/scripts/build/configure-system.sh
+++ b/images/macos/scripts/build/configure-system.sh
@@ -33,6 +33,12 @@ sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.backupd.plist
 echo "Disable Apple Push Notification Service daemon"
 sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.apsd.plist
 
+echo "Set SMC monitoring cadence to 0 to reduce CPU usage"
+sudo defaults -currentHost write /Library/Preferences/com.apple.powerlogd SMCMonitorCadence 0
+
+echo "Disable Performance and Power Management daemon if possible"
+sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.PerfPowerServices.plist
+
 # Remove Parallels Desktop
 # https://github.com/actions/runner-images/issues/6105
 # https://github.com/actions/runner-images/issues/10143