[Bug 234733] Setting CPU frequency with sysctl dev.cpu.0.fr slows a Ryzen 2700X down

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Mon Jan 27 04:55:34 UTC 2020


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234733

--- Comment #12 from Conrad Meyer <cem at freebsd.org> ---
(It's also surprising that writing c0010062 *works* and overwrites c0010061 —
the docs for c0010062 say: "P-state limits are applied to any P-state requests
made through this register. Reads from this field return the last value
written, regardless of whether any limits are applied.")

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