L3 Cache Performance on Windows 11?

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

  1. dsbig

    dsbig MDL Senior Member

    Aug 3, 2009
    298
    44
    10
    Microsoft is internal testing 22000.258, maybe it will have the fix.
     
  2. maddogster

    maddogster MDL Senior Member

    Mar 23, 2015
    276
    95
    10
    complain to hardware vendors as they responsible for optimizing this in driver/firmware for OS :) vendors too lazy or just want to sell new hardware and not fix or optimize older hardware too much :(
     
  3. Espionage724

    Espionage724 MDL Expert

    Nov 7, 2009
    1,034
    368
    60
    Yes, I believe this was fixed since 22449.1000.
     
  4. Alfgard

    Alfgard MDL Novice

    Oct 22, 2017
    2
    1
    0
    Good news fix incoming amd.com/en/support/kb/faq/pa-400 :rolleyes:
     
  5. pf100

    pf100 MDL Expert

    Oct 22, 2010
    1,999
    3,229
    60
  6. BAU

    BAU MDL Expert

    Feb 10, 2009
    1,106
    2,725
    60
    #106 BAU, Oct 8, 2021
    Last edited: Oct 8, 2021
    let's never again downplaying other people's issues (with reproducible proofs!), as if acknowledging it would make your hardware bad or something
    I'm so glad it's acknowledged fairly quickly and microsoft will offer a fix as early as this month

    edit: extra dandruff removed :p
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  7. pf100

    pf100 MDL Expert

    Oct 22, 2010
    1,999
    3,229
    60
    I thought it was a pretty good rant and would like to formally file my objection to you removing it.
     
  8. blunden

    blunden MDL Novice

    Mar 5, 2009
    38
    4
    0
    Except the L3 cache issue is a Windows kernel issue it seems, not driver or AGESA issue. The CPPC issue might be partially an AMD issue though based on the wording in AMDs advisory, although that also seems improved in the dev builds from what I hear. In short, Microsoft deserves the blame on this one. :)
     
  9. maddogster

    maddogster MDL Senior Member

    Mar 23, 2015
    276
    95
    10
    yeah on engadget amd is working on a fix for windows 11 as they see performance hits and don't want their name/reputation tied to anything performance related on a negative so if is amd specifically for this L3 then not my cup of tea as I have always worked with intel based laptops/desktops; but then again is a driver/bios/firmware issue as amd fix will be just that just like intel has many updates/fixes for their hardware; Microsoft makes products that take advantage of certain things over time but never leading/bleeding edge for the most part as that is on the hardware makers themselves to optimize if their users want to make use of or experiment with :) just like overclocking and bypassing thresh holds based on not harming the hardware lifespan with extreme usage short term :)
     
  10. Espionage724

    Espionage724 MDL Expert

    Nov 7, 2009
    1,034
    368
    60
    L3 has been fixed since early last month on Dev builds. The issue is purely Microsoft's fault. They know the fix, but decided not to have it in Release/RTM.
     
  11. finderz

    finderz MDL Member

    Dec 20, 2009
    102
    49
    10
    Not sure if m$ decided to go ahead and left out the fix due to shorten time frame left to test before releasing win11. They could push back the win11 release but high chance is they don't really perceive it as a deal breaker for AMD users.
     
  12. Carlos Detweiller

    Carlos Detweiller MDL Spinning Tortoise

    Dec 21, 2012
    4,769
    4,829
    150
    Win11 is already released, so, kinda too late for pushing back release.

    They will probably block upgrades for Ryzen machines until the fix is available.
     
  13. finderz

    finderz MDL Member

    Dec 20, 2009
    102
    49
    10
    Yeah likely the upgrade for Ryzen machine could be after the patch have been release, then there will be a refresh win11 iso.
     
  14. pf100

    pf100 MDL Expert

    Oct 22, 2010
    1,999
    3,229
    60
  15. pf100

    pf100 MDL Expert

    Oct 22, 2010
    1,999
    3,229
    60
    I would cancel Windows 11 and do a clean install of 10 if I didn't already know there's supposed to be a fix for it this month.
    Since my performance isn't noticeably suffering I'm going to just wait.
     
  16. Spawn182

    Spawn182 MDL Novice

    Jun 15, 2008
    23
    2
    0
    As far as I know, the current 22000 scheduler has problems with Ryzen CPUs. So, if you had any load on your CPU while you did the second test, maybe AIDA showed better scores. I have seen benchmarks running in a W11 VM under Windows 11 showing normal results, while the host showed those awful low results.

    But this all does not matter, a fix is in the works. So just be patient. I have no apps where I see a significant impact of a low L3 cache performance.
     
  17. Warkratos

    Warkratos MDL Member

    May 14, 2015
    103
    184
    10
    I'm expecting that the fix comes out on patch tuesday. (tomorrow)
     
  18. pf100

    pf100 MDL Expert

    Oct 22, 2010
    1,999
    3,229
    60