topic Re:How to identify p-core and e-core in Microsoft Windows task manager? in Mobile and Desktop Processors

How to identify p-core and e-core in Microsoft Windows task manager?

1nteldevteam — Sat, 04 Jun 2022 04:47:18 GMT

Hi,

I have two problems:

someone has 12 logic processors in Microsoft Windows task manager but someone has 20 logic processors for same i7-12700K? What is the reason of difference?
How to identify p-core and e-core in Microsoft Windows task manager? I want to test the performance but I can't identify p-core and e-core, is there a tool I can use?

Re: How to identify p-core and e-core in Microsoft Windows task manager?

n_scott_pearson — Sun, 05 Jun 2022 00:42:38 GMT

I can answer the first question. The Core i7-12700K processor has 8 pCores and 4 eCores. When Hyperthreading is enabled, you will have 16 threads from the pCores plus the 4 threads from the eCores for a total of 20 threads. When Hyperthreading is disabled, however, you will only have 8 threads from the pCores and thus a total of 12 threads.

As for the second question, since I don't have a 12th gen processor, I am not sure of the answer. Have you tried running AIDA64? If anyone has support for this, I believe it will be them.

Hope this helps,

...S

Re: How to identify p-core and e-core in Microsoft Windows task manager?

1nteldevteam — Sun, 05 Jun 2022 05:24:19 GMT

Hi,

I really appreciate your kindly and professional help. I use all 20 logic processors in scientific computing software, there are only 8 threads have high work load, theother 8 threads of pCore only have low work load in 600 seconds computer time.

OS: Windows 10 21H2；

Task manager

In AIDA64, I find the eCore cpu utilization

Re:How to identify p-core and e-core in Microsoft Windows task manager?

DeividA_Intel — Thu, 09 Jun 2022 20:14:46 GMT

Hello 1nteldevteam,

Thank you for posting on the Intel® communities. I am sorry to know that you are having issues with your Intel® Core™ i7-12700K Processor.

In order to better assist you, please provide the following:

1. Run the Intel® System Support Utility (Intel® SSU) to gather more details about the system.

Download the Intel® SSU and save the application on your computer: https://www.intel.com/content/www/us/en/download/18377/intel-system-support-utility-for-windows.html
Open the application, check the "Everything" checkbox, and click "Scan" to see the system and device information. The Intel® SSU defaults to the "Summary View" on the output screen following the scan. Click the menu where it says "Summary" to change it to "Detailed View".
To save your scan, click Next and click Save.

2. Do you still see the mismatching with the logic processors?

3. Have you experienced any performance issues with your processor

4. Are you using a laptop or desktop computer?

Best regards,

Deivid A.

Intel Customer Support Technician

Re: Re:How to identify p-core and e-core in Microsoft Windows task manager?

1nteldevteam — Fri, 10 Jun 2022 11:12:31 GMT

Hi Deivid,

I have run the Intel® System Support Utility (Intel® SSU) .
I can still see the mismatching with the logic processors when I run computation intensive problems.
Yes, I fell i7-12700k has big problem when run mismatching with the logic processors in windows 10 21H2 system because it's scheduling problem.
desktop computer.

Re:How to identify p-core and e-core in Microsoft Windows task manager?

DeividA_Intel — Fri, 10 Jun 2022 22:09:15 GMT

Hello 1nteldevteam,

Thanks for the information provided. Seems that the report is not attached to your last post. In order to continue further, please provide the following:

1. Provide the report from the Intel® System Support Utility (Intel® SSU).

2. Can you provide examples of "computation-intensive problems"?

3. Do you have any performance issues with apps? Can you mention a list of these apps?

Regards,

Deivid A.

Intel Customer Support Technician

Re:How to identify p-core and e-core in Microsoft Windows task manager?

DeividA_Intel — Tue, 14 Jun 2022 18:39:05 GMT

Hello 1nteldevteam,

Were you able to check the previous post and get the information requested? Please let me know if you need more assistance.

Regards,

Deivid A.

Intel Customer Support Technician

Re:How to identify p-core and e-core in Microsoft Windows task manager?

DeividA_Intel — Thu, 16 Jun 2022 17:11:08 GMT

Hello 1nteldevteam,

We have not heard back from you, so we will close this inquiry. If you need further assistance or if you have additional questions, please create a new thread and we will gladly assist you.

Regards,

Deivid A.

Intel Customer Support Technician