PEBS

[Hamid_ha]

When I run the PEBS on the intel Syklake and then run the pref concurrently I have found that number of micro operations delivered from microcode sequencer (MS) is increasing a a lot. Particularly by lowering the sampling rate of PEBS it grows exponentially. Can we say that these micro operations delivered from the MS  are related to running the PEBS assist microcode on the core ?

[Jocelyn_Intel]

Hello, @Hamid_ha  

Thank you for posting on the Intel® communities. I will do my best to help you here. 

In order to understand your inquiry, what are you exactly trying to do? 

Also, please specify the processor's model. 

Best regards,  

Jocelyn M.   

Intel Customer Support Technician. 

[Hamid_ha]

The model is "Intel(R) Xeon(R) Silver 4114 CPU @ 2.20GHz" and I want to measure the PEBS overhead while running the workload.

[Jocelyn_Intel]

Hello, @Hamid_ha  

Thank you very much for the information provided. 

I will forward your thread to the proper team that can assist you with your inquiry. We will contact you soon. 

Best regards,  

Jocelyn M.   

Intel Customer Support Technician. 

[Steven_Intel]

Hello Hamid_ha,

Thank you for posting on the Intel® communities.

We are currently researching more about this, as soon as I have an update I will let you know.

Best regards,

Steven G.

Intel Customer Support Technician.

[Steven_Intel]

Hello Hamid_ha,

Upon investigating about this, I recommend you to post this same concern on our Analyzer community (https://community.intel.com/t5/Analyzers/bd-p/analyzers) in order to get the assistance you need.

Please keep in mind that this thread will no longer be monitored by Intel. 

Thank you for your understanding.  

Best regards,

Steven G.

Intel Customer Support Technician.