L3 Cache Performance on Windows 11?

Discussion in 'Windows 11' started by Espionage724, Aug 19, 2021.

  1. panchop

    panchop MDL Senior Member

    Jul 26, 2009
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    The versions aren't the same "bad" results is 6.33.5761 BETA and "good" results is on 6.33.5772 BETA
     
  2. Warkratos

    Warkratos MDL Member

    May 14, 2015
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    22000.258 - First Cumulative Update for Win 11 is out!

    let's see if it fixes this issue
     
  3. tkmskittles

    tkmskittles MDL Novice

    Aug 8, 2017
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    not fixed for me
     
  4. BlackScout

    BlackScout MDL Member

    Aug 4, 2016
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    The AIDA results are highly variable, I have said that before xD
     
  5. pf100

    pf100 Duct Tape Coder

    Oct 22, 2010
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    That may be true, but the problem hasn't been fixed so any good result is an error. I suspect that Aida will have to update their method of testing L3 performance with windows 11.
     
  6. MrBeer

    MrBeer MDL Member

    May 23, 2007
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    Microsoft has already confirmed the problem and it will be fixed sometime in October l3 performance is low plus preferred core is not being used right on amd CPU
     
  7. MS_User

    MS_User MDL Guru

    Nov 30, 2014
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    i have a older I7-6600U and it also feels very sluggish lets see if MS can fix this soon:rolleyes:
     
  8. RobrPatty

    RobrPatty MDL Addicted

    Jul 23, 2009
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    I chatted with AMD support and should get new driver tomorrow. :3eyes:
     
  9. pf100

    pf100 Duct Tape Coder

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    What kind of driver? Does it have anything to do with L3 or CPPC preferred cores, or do you mean a graphics card driver?
     
  10. RobrPatty

    RobrPatty MDL Addicted

    Jul 23, 2009
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    CPPC preferred cores driver/fix
     
  11. DontuZoru

    DontuZoru MDL Senior Member

    Mar 6, 2014
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    CPPC fix is 21/10 and L3 cache fix is 19/10, so i have my doubts for today..
     
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  12. Stimpy88

    Stimpy88 MDL Senior Member

    Mar 24, 2011
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    And? Will you share it?
     
  13. Espionage724

    Espionage724 MDL Expert

    Nov 7, 2009
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    You (and anyone else) can request it from AMD freely, or wait for them to publicly release it. I don't imagine it'll be under some kind of NDA.
     
  14. Stimpy88

    Stimpy88 MDL Senior Member

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    #139 Stimpy88, Oct 14, 2021
    Last edited: Oct 14, 2021
    Not sure why your responding on his behalf, but anyway, I did ask them, and they said they did not have it at hand to share, and that it will be released on their site in the near future, and I could download it then...

    I have rephrased my question, and have asked again. If I get the file, I will share it.
     
  15. Stimpy88

    Stimpy88 MDL Senior Member

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    #140 Stimpy88, Oct 14, 2021
    Last edited: Oct 14, 2021
    And here I have AMD's official email reply...

    Your service request : SR #{ticketno:[820***1193]} has been reviewed and updated.

    Response and Service Request History:

    Thank you for your email.



    Based on your inquiry, I understand that you wish to have the software update that addresses the known performance variation observed in Windows 11 OS i.e., “UEFI CPPC2 (“preferred core”) may not preferentially schedule threads on a processor’s fastest core.”



    A software update is in development to address this issue with expected availability in October of 2021.



    Please refer the KB Article PA-400.

    Windows® 11 Performance Variation in Certain Applications on Compatible AMD Processors | AMD



    AMD and Microsoft are partnering to resolve these issues with upcoming software updates. This knowledge base article will be updated to include version numbers and how to update when they are available.

    Thank you for contacting AMD

    In order to update this service request, please respond without deleting or modifying the service request reference number in the email subject or in the email correspondence below.

    Please Note: This service request will automatically close if we do not receive a response within 10 days and cannot be reopened.

    If it is not feasible to respond within 10 days, feel free to open a new service request and reference this ticket for continued support.

    Best regards,

    Raks**th

    AMD Global Customer Care