Software Tuning, Performance Optimization & Platform Monitoring
Discussion regarding monitoring and software tuning methodologies, Performance Monitoring Unit (PMU) of Intel microprocessors, and platform updating.

Is "clflush" instruction Intel CAT-agnostic?

AAhma10
Novice
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On a processor that supports L3 CAT (Cache Allocation Technology), assume I create two partitions (P1 and P2). However, I run the instruction "clflush" on an address which should reside in P1 but after switching from P1 to P2. Will "clflush" evict the cache-line in P1 or not?

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Emeth_O_Intel
Moderator
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Hello AAhma10,

 

Thank you for contacting us about this concern.

 

Could you please so kind and provide us more details about the configuration that you are trying to accomplish?

 

On the other hand, I will double check the information and proceed with the next step in order to provide you the most accurate information.

 

Best regards,

 

Emeth O.

Intel Customer Support Technician.

Under Contract to Intel Corporation.

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Emeth_O_Intel
Moderator
867 Views
Hello AAhma10, I am following up your case in order to double check some important details before to proceed with any next step. Please provide us the model of the processor in which you are trying to accomplish this configuration. Best regards, Emeth O. Intel Customer Support Technician. Under Contract to Intel Corporation.
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AAhma10
Novice
867 Views

Hey,

 

Thanks for the response!

 

I have a Core i7-8700 (12M L3 cache, 4.6GHz) processor that I am trying to accomplish this on.

 

Please let me know if you need more details.

 

Thanks!

Adil

Emeth_O_Intel
Moderator
867 Views
Hello, Thank you for the information provided. I am going to double check this information with an upper level department in order to clarify the information. Best regards, Emeth O. Intel Customer Support Technician. Under Contract to Intel Corporation
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PatS_Intel
Moderator
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Hello AAhma10, For the details you are looking for, I recommend submitting a Service Request following the instructions from the below Developer Zone page since they do not provide support via Intel communities: How to Create a Support Request at the Online Service Center https://software.intel.com/en-us/articles/how-to-create-a-support-request-at-online-service-center Regards, Pat S. Intel Customer Support Technician. Under Contract to Intel Corporation.
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