Windows 10. Why does 12600k park so many cores? Cores are not fully hyperthreaded

[pman62]

using Windows 10.

under normal usage, the cpu is not hyperthreading properly

or is this expected behavior?

If i disable the e-cores on the 12600k, all p-cores are fully utilized. I have 12 hyperthread cores.

if I leave e-cores enabled, I virtually have only 10 cores.... 6-non-ht p-cores, and 4 ecores.

it looks as though hyperthreading is effectively disabled when the e-cores are used.

See my task manager.... See those 6 parked logical processors?  

what's going on here?

When e-cores are disabled, hyperthreading returns to  normal...

[David_G_Intel]

Hello pman62

Thank you for posting on the Intel️® communities. To investigate this, please share with us the following:

• Motherboard model and BIOS version
• Windows version and build
• Intel® System Support Utility (Intel® SSU) results 
  • Download the Intel SSU https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows- 
  • Open the application and select "Everything" click on "Scan" to see the system and device information. By default, Intel® SSU will take you to the "Summary View".  
  • Click on the menu where it says "Summary" to change to "Detailed View".  
  • To save your scan, click on "Next", then "Save".

Regards, 

David G 

Intel Customer Support Technician 

[David_G_Intel]

Were you able to check the previous post?  

Let us know if you still need assistance.    

Best regards,  

David G.  

Intel Customer Support Technician  

[David_G_Intel]

We have not heard back from you, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.  

Best regards,  

David G. 

Intel Customer Support Technician