High cpu 74% kernel_task is crazy!

[Ipotex]

Any idea?

[deeveedee]

@Ipotex,

 

@hardcorehenry had what seemed to be a good suggestion (use his CPUFriend data), but I'm not sure what happened to his post.  I'll admit that I'm reaching for any suggestions at this point.  If you played with various SMBIOS configs before settling on your final config, you may have extraneous power management plists in /Library/Preferences.  If that's the case, you may want to delete com.apple.PowerManagement*.plist in /Library/Preferences and reboot.  After you reboot, reset your pmset properties (see here) and confirm that your Energy Saver (Battery and Adapter) settings are correct in System Preferences.

 

Also, make sure that you are resetting NVRAM (from the Open Core boot menu) whenever you make EFI changes.

 

If none of that helps, I eagerly await your (or someone else's) solution.  Good luck!

 

 

@Ipotex Something just occurred to me that I experienced on older platforms (not so much on my Kabylake and later platforms) - I found that Spotlight indexing became excessive with the number of drives in my systems.  I routinely disabled spotlight on these older platforms.  Not sure if this is a problem for you (maybe someone else can chime in), but if none of the previous suggestions help, maybe you should look at spotlight.

Edited September 24, 2021 by tonyx86

[Ipotex]

Hi! thank you for your reply.  I used this guide to config cpufriend kext 

https://www.olarila.com/topic/5693-guide-ssdt-with-pikes-pm-script-and-use-with-cpufriend/

 

Guide is ok, but problem continues unsolved.  😥

 

I'll try disabling Spotlight ...

[Ipotex]

No changes disabling Spotlight....  😥

 

I don't know what to do. All are working full,  Wifi, Audio, IGPU,  but kernel_task 😥  it's frustrating...

Edited September 24, 2021 by Ipotex

[makk]

What apps do you have installed?

 

That may be problem.

 

I made some changes to your config.plist 

updated a few things in config.plist for Opencore 73.

 

Try that copy the old one 

 

Also CPUFriend does work on my system without data input.  But my system is weird to being with.

 

 

EFI.zip

Edited September 25, 2021 by makk

[Ipotex]

Hi Makk, thank you for your reply.  I tried with a clean installation and same problem. I think its not about any application. 

In same hardware but another HD I have installed Sierra working without any problem. 
I'll try your EFI tomorrow. 

Now, I'm booting with last version of Clover,  same error. 
I added data input to CPUFriend, as ssdt and .kext inject.  Its working I can see it on IORegistryExplorer.  But problem continue.

I try booting with -x

I'm starting to think it's not about CPU....     sleep and wake works, all works...  but kernel_task all time 74% cpu usage.

 

 

[Ipotex]

@makk  Same issue with your EFI, but I appreciate your help. Thanks.

[makk]

10 hours ago, Ipotex said:

@makk  Same issue with your EFI, but I appreciate your help. Thanks.

Try a different mac mode.

 

iMac13,3 close to your CPU

 

You're welcome.

 

Edited September 28, 2021 by makk

[Ipotex]

11 hours ago, makk said:

Try a different mac mode.

 

iMac13,3 close to your CPU

 

You're welcome.

 

iMac13,3 doesnt support BigSur I guess. 

I tried with 14,4 , 15,1 and 16,1 

I'll go back to Catalina using same EFI and test if it's a problem only with BigSur

 

 

[deeveedee]

In the past (through macOS Catalina) I ALWAYS set the SMBIOS macModel to be most appropriate for the hardware and not for compatibility with macOS.  As I did here for my HackBookPro6,2, I would think that you can use boot-arg -no_compat_check to allow Big Sur to run on "discontinued" hardware.  I haven't tried -no_compat_check with Big Sur, but my HackBookPro6,2 still runs Catalina perfectly as a "discontinued" MBP6,2.  You may need to temporarily change the SMBIOS to be able to download newer macOS releases/updates, but you should then be able to run with the hardware-approprate macModel and "-no_compat_check."

Edited September 28, 2021 by tonyx86

[makk]

15 hours ago, tonyx86 said:

In the past (through macOS Catalina) I ALWAYS set the SMBIOS macModel to be most appropriate for the hardware and not for compatibility with macOS.  As I did here for my HackBookPro6,2, I would think that you can use boot-arg -no_compat_check to allow Big Sur to run on "discontinued" hardware.  I haven't tried -no_compat_check with Big Sur, but my HackBookPro6,2 still runs Catalina perfectly as a "discontinued" MBP6,2.  You may need to temporarily change the SMBIOS to be able to download newer macOS releases/updates, but you should then be able to run with the hardware-approprate macModel and "-no_compat_check."

 

Good I missed that part  -no_compat_check  

 

I used Clover Configurator to check.  Certain models are discontinued: GO to do the Dosdude1 site to find them accurately.

 

Sorry about that

Edited September 29, 2021 by makk

[makk]

19 hours ago, Ipotex said:

iMac13,3 doesnt support BigSur I guess. 

I tried with 14,4 , 15,1 and 16,1 

I'll go back to Catalina using same EFI and test if it's a problem only with BigSur

 

 

I just tested

 

MacBookPro15,1

 

works great, try that one

 

Use CLover Configurator just to get the model then save to desktop as config.plist with nothing but SMBIOS

need also to make up a ROM.  00:24:d2:b3:86:84 < random MAC address minus these > : < colon

 

Don't use configurator for noraml OC config.plist it leaves out things and wipes certain things out.

 

Use Xcode or Proper Tree or similar

Edited September 29, 2021 by makk

[Ipotex]

Hi guys,  I tried a lot of smbios configurations all do same issue. 
I have been updated to Monterey… same issue 😱

Only diff intel power app works. On Bigsur it doesnt.  
In picture you can see kernel_task high usage. 
 

[Ipotex]

Hi! I deleted all and start again.... 

I installed Catalina and...... same issue... kernel task 70% usage all time :( 

I tried old SMBios iMac14,2 iMac14,4 with -no_compat_check same problem. 

[deeveedee]

After macOS is first installed, there will be elevated resource utilization as the installation is finished.  If you allow your rig to sit for a while after a clean install, does the CPU utilitization drop?

 

I'm sorry that I don't have any other ideas for you.

[Ipotex]

Thanks tonyx86.  I begin to think its not related to cpu or acpi.  May be mothers bios or some thing else.

[Ipotex]

Is this useful? I don't know how to interpret it.  See attachkernel_task_0.spindump.txt

[makk]

On 9/8/2021 at 2:23 PM, Ipotex said:

Hi folks, 

Any idea about how to know what is doing 74% work on first core?  another one is working ok.    It's a core i3-4360 iGPU 4600

kernel_task is 74% of work all the time. 

 

I tried -x 

I looking for iMac14,4. inside ACPI_SMC_PlatformPlugin but its not there. 

 

any clue? Thanks

 

Is this a Desktop or Laptop?

 

Do you have the BIOS set right?

[Ipotex]

Its a Desktop.

I made a lot of changes in Bios trying to avoid this error. 
 

On same hardware I have installed Sierra. Its working without this issue. And of course, same Bios configuration. 

[Ipotex]

Thank you @makk

 

what is your AAPL,ig-platform? Seems like Sandybridge?  It's 0300220D, It's a Haswell.

 

I'll check my Bios again. 

[Ipotex]

I've reset my Bios loading defaults values and change some of them, same issue. 

 

[makk]

40 minutes ago, Ipotex said:

I've reset my Bios loading defaults values and change some of them, same issue. 

 

 

What OS are you on now?

Catalina?

 

Hardware list:

Graphics make and model (IGPU 4600? doesn't cut it) What is it exactly

Your peripherals what are they....

 

In Terminal run copy paste press enter to get output in Terminal

To view the Kernel log:

 

log show --debug --last boot --predicate 'process == "kernel"'

 

copy to text file:  outputs to a file called Kernalog.txt

 

log show --debug --last boot --predicate 'process == "kernel"' > Kernallog.txt

 

Open a second Terminal copy paste to get output

To view the ACIP log:

 

log show --last boot | grep -i ACPI

 

copy to text file:  outputs to a file called ACPIlog.txt

 

log show --last boot | grep -i ACPI > ACPILog.txt

 

 

Opencore for Haswell Desktop

https://dortania.github.io/OpenCore-Install-Guide/config.plist/haswell.html#starting-point

https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/haswell.html#starting-point

 

Intel BIOS Settings for  Haswell

https://dortania.github.io/OpenCore-Install-Guide/config.plist/haswell.html#intel-bios-settings

https://dortania.github.io/OpenCore-Install-Guide/config-laptop.plist/haswell.html#intel-bios-settings

 

Go To the Apple Logo in the Left Corner of the Menu Bar click and run:

 

About this Mac> System Report>Graphics 

check if it is metal capable

 

Is your Graphics card Metal Capable?

 

Download VDADecoderChecker.zip, extract and run it by double clicking it

That should give you some idea if your accelerator is working for video

 

 

451893_10.12_VDADecoderChecker.zip

Edited October 3, 2021 by makk

[makk]

Having Opencore in Debug mode

 

Download OC 73 Debug, not the Release

 

Copy the files there to EFI

 

Take a look at the screen shots and match them one for one exactly

Or you can go here:

 

Opencore Debug:

https://dortania.github.io/OpenCore-Install-Guide/troubleshooting/debug.html#file-swaps

 

Set debug to 83

Misc -> Debug -> Target -> 83

 

[Ipotex]

Hi @makk Thank you for your time. 

I did a fresh Catalina installation.

 

Opencore 0.6 Debug.   (I can't run Catalina with last open core version, but 0.6 have same issue high cpu kernel_task)

 

CPU: Intel(R) Core(TM) i3-4360 CPU @ 3.70GHz. https://ark.intel.com/content/www/us/en/ark/products/77493/intel-core-i3-4360-processor-4m-cache-3-70-ghz.html

Integrated Graphics. Intel® HD Graphics 4600

 

Result of VDADECODERCHECKER: Hardware acceleration is fully supported

 

I can't upload images and file now because a bug in forum I don't know.. but tomorrow I will do. 

 

 

[Ipotex]

kernellog.txt

https://drive.google.com/file/d/1FvFaP_AAoWYPtmLpz9hYLeazgoTpBT9P/view?usp=sharing

acpilog.txt

https://drive.google.com/file/d/1Hxy_MbESwSNH0wJAui8PjvoeO3AGQDOJ/view?usp=sharing

 

Intel HD Graphics 4600:

 

  Chipset Model: Intel HD Graphics 4600

  Type: GPU

  Bus: Built-In

  VRAM (Dynamic, Max): 1536 MB

  Vendor: Intel

  Device ID: 0x0412

  Revision ID: 0x0006

  Metal: Supported, feature set macOS GPUFamily1 v4

  Displays:

D2342P:

  Resolution: 1920 x 1080 (1080p FHD - Full High Definition)

  UI Looks like: 1920 x 1080 @ 60 Hz

  Framebuffer Depth: 24-Bit Color (ARGB8888)

  Display Serial Number: SerialNumber

  Main Display: Yes

  Mirror: Off

  Online: Yes

  Automatically Adjust Brightness: No

  Connection Type: Internal