I like your optimism. On the other hand I think they'll fix it whenever they get around to it which could be the next update or 2 years from now.
I am inclined to think that the issue may still persist but I am not sure. SiSoftware Sandra used to be affected but my last tests show it's no longer the case. It would be interesting if AIDA devs spoke about it.
FYI, this did not help my 3900x. This won't get fixed until after Intel launches it's new CPU, as Win11 seems to be back to the old "WinTel" shenanigans. There are talks of the Win11 scheduler having performance regressions in Ryzen systems over Windows 10 - Best core, core parking, task switching etc.
For those on mobile or who are lazy: Issue: Measured and functional L3 cache latency may increase by ~3X. Impact: Applications sensitive to memory subsystem access time may be impacted. Expected performance impact of 3-5% in affected applications, 10-15% outliers possible in games commonly used for eSports. Issue: UEFI CPPC2 (“preferred core”) may not preferentially schedule threads on a processor’s fastest core. Impact: Applications sensitive to the performance of one or a few CPU threads may exhibit reduced performance. Performance impact may be more detectable in >8-core processors above 65W TDP. Resolution: A Windows update is in development to address this issue with expected availability in October of 2021.
I kinda liked Win11 but have since re-installed Win10 because of CPU latency is horrible on my 3900X. Win11 seriously felt unfinished and not even close to the stability and responsiveness of 19044.1237
Are you saying you actually felt the difference? Or is it just a number in a benchmark that annoys you? Because I'm on a 3900x and it feels perfectly snappy to me... The L3 Cache bug is affecting my system, but I can't say I notice it in any way. Plus it'll get fixed soon.
I have a 3700x. I play casual games so it's not going to kill me to wait a few weeks for an update. Yes I do feel 11 was rushed through.
I have a 2700X, and W11 is notably slower as-is out-the-box, and even with Defender and VBS disabled. I'm under the impression W11 is either on-par with W10 in speed, or worse unless you have the single Intel architecture W11 was primarily designed for. I'm not sure how it could possibly be faster than W10 in its current state. I only use Windows for VR, and anything that hampers what little CPU performance headroom I already have will be noticeable. I have no real interest in losing performance for some undetermined amount of time for an OS that offers no tangible benefits
Going by my experience of still getting good frame rates in games, I've been downplaying this whole L3 issue but I see that I was wrong. Glad to see they are going to address it. Seems like this should have been fixed before Windows 11 was released. I know I'm not saying anything that we don't already know, but Microsoft doesn't put as much effort into Windows development as they should and I don't understand why they continue to do that year after year.
Well maybe on that processor I believe it (not really tbh)... on a 3900x, though.... I don't notice any difference in speed, though. Be it just using Windows or gaming.
That's what threw me on this whole L3 thing, I couldn't tell any decrease in performance in any real world applications.
I mean I don't intend to say it doesn't matter at all. It most likely does in edge cases, and I absolutely want it fixed. I'm just kinda doubting people saying that they're feeling a difference. That's more likely placebo effect, because there's that number that isn't as high as it's supposed to...