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How to fix powerd 100% CPU usage – macOS Ventura

Fix powerd 100% CPU usage is an anomaly encountered in this period on operating systems macOS Ventura. Excessive consumption of CPU resources of the process powerd do what MacBook / Mac unusually noisy. It is also understandable. Excessive CPU consumption leads to heating of the processor and the ventilation system tries to cool it down. Fortunately there is also a solution for to solve this excessive CPU consumption of the process powerd.

Why does powerd consume 100% – 105% CPU

The problem comes from a feature added by Apple for the Mail application on macOS Ventura, iOS 16 si iPadOS 16. The new feature of the Mail application allows users to program the time and date at which an email message will be sent automatically. This operation is possible through a programmed task.

% pmset -g sched
Scheduled power events:
 [0]  wake at 04/12/62 02:47:16 by 'com.apple.alarm.user-visible-com.apple.email.SendLaterDelivery' User visible: true
 [1]  wake at 04/12/62 02:47:16 by 'com.apple.alarm.user-visible-com.apple.email.SendLaterDelivery' User visible: true
 [2]  wake at 04/12/62 02:47:16 by 'com.apple.alarm.user-visible-com.apple.email.SendLaterDelivery' User visible: true

The power system will try to prevent entering sleep to execute the scheduled task, but things get a little crazy and enter an endless loop where the powerd process is used abnormally long. Normally powerd should consume 0.1% CPU, but it reaches 104% - 105% CPU.

% pmset -g assertions
2022-08-07 11:07:05 +0300 
Assertion status system-wide:
   BackgroundTask                 0
   ApplePushServiceTask           0
   UserIsActive                   1
   PreventUserIdleDisplaySleep    0
   PreventSystemSleep             0
   ExternalMedia                  0
   PreventUserIdleSystemSleep     1
   NetworkClientActive            0
   InternalPreventSleep           1
....
   pid 115(powerd): [0x000002bf000d90a5] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
   pid 115(powerd): [0x000002bf000d90a6] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
   pid 115(powerd): [0x000002bf000d90a7] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
   pid 115(powerd): [0x000002bf000d90a8] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
   pid 115(powerd): [0x000002bf000d90a9] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
   pid 115(powerd): [0x000002bf000d90aa] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
   pid 115(powerd): [0x000002bf000d90ab] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
   pid 115(powerd): [0x000002bf000d90ac] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
   pid 115(powerd): [0x000002bf000d90ad] 00:00:00 InternalPreventSleep named: "com.apple.powermanagement.wakeschedule"  
	Timeout will fire in 5 secs Action=TimeoutActionRelease
....
Fixed powerd 100% CPU
Fixed powerd 100% CPU

It definitely needs one fix powerd 100% CPU, because effectively you can no longer work on one MacBook, and we know that excessive heating also leads to battery degradation. t85o381l4ur3n71u

how to fix powerd 100% CPU - macOS Ventura

The simplest solution is to stop all scheduled power tasks. Execute the command line in Terminal:

sudo pmset schedule cancelall

After executing the command, powerd it will instantly drop to 0.1% CPU and fans Mac they will make no more noise.

Fix Powerd macOS Ventura
Fix Powerd macOS Ventura

The most likely Apple will solve this problem in one update future of macOS Ventura Beta.

So that you don't need tutorials such as How to fix powerd 100% CPUI do not recommend installing beta versions except on devices that are not intended for productivity.

In my case, this problem of the powerd process appeared after I used the feature Send Later pe iOS 16. Synchronization between devices took over the task on MacBook.

How to fix powerd 100% CPU usage – macOS Ventura

About the author

stealth

I am pleased to share my experiences with computers, mobile telephony and operating systems, develop web projects and provide the most useful tutorials and tips.
I like to "play" on iPhone, MacBook Pro, iPad, AirPort Extreme and on macOS operating systems, iOS, Android and Windows.

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  • Спасибо добрые люди) and I already changed the thermal paste, I thought that the cooler wouldn't be cut out for shit. One core was loaded to 100% because of this one core overheated the rest of the norm and the cooler turned on at maximum (