AMD says it's "heard from the community" and has updated its official performance figures for the Ryzen 9000-series.

It’s not “because we’re not fiddling” with anything.

It’s because Windows’ scheduler is objectively broken and not scheduling workloads correctly.

Can you elaborate? How is it breaking?

It assigns workloads to the virtual core (from SMT) before properly distributing them to other cores. Source

This is not an issue on Linux because they schedule threads correctly.

But I guess this post is about windows only doing some other branch prediction correctly on some admin mode, so I guess that way too.

Thanks for the explaination! I would have searched in but I’m on a phone and my kids are jumping on the couch/me. Have an upvote, on me.

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