how to know a core is P-core or E-core

[Kongrong]

cpu: 12th Gen Intel(R) Core(TM) i5-1240P

os: ubuntu 20.04.6 LTS (Focal Fossa)

How to know a core is P-core or E-core

I got messages using cat /proc/cpuinfo

[Jocelyn_Intel]

Hello, @Kongrong  

Thank you for posting on the Intel® communities.  

I am sorry to hear what is happening with your processor. 

We can provide you the information of how the cores work and how many you have, for example, your processor has 4 P-cores and 8 E-cores, you can actually verify this information here. 

However, if you have any other problems identifying the E-cores or P-cores in your OS or getting messages regarding this, you need to contact the OS developer for further assistance. 

Best regards,  

Jocelyn M.   

Intel Customer Support Technician. 

[Kongrong]

Hi Jocelyn,

I am a kernel developer,.

I have a idea for intel P & E core, so I want to make a scheduler based on Ubuntu.

But I can not get the information which is P-core or E-core. So I need your help.

Best regards.

[Jocelyn_Intel]

Hello, @Kongrong  

Unfortunately, the only information we have is how they work, their functionality, for this inquiry, you have to contact your OS support for further assistance. 

Best regards,  

Jocelyn M.   

Intel Customer Support Technician.