Messages in this thread | | | Date | Mon, 14 Dec 2020 13:40:23 +0100 | From | Borislav Petkov <> | Subject | Re: [RFC PATCH 2/4] cpufreq: acpi-cpufreq: Add processor to the ignore PSD override list |
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On Sat, Dec 12, 2020 at 08:36:48AM +0900, Punit Agrawal wrote: > To me it suggests, that there are likely more systems from the family > that show the characteristic described below.
Until we find a *single* system with a broken BIOS which has those objects kaputt and then this heuristic would need an exception.
VS the clear statement from AMD that from zen3 onwards, all BIOS will be tested. I hope they boot Linux at least before they ship.
> In all these systems, the override causes this topology information to > be ignored - treating each core to be a separate domain. The proposed > patch removes the override so that _PSD is taken into account.
You're still not answering my question: what does the coupling of the SMT threads bring on those systems? Power savings? Perf improvement? Anything palpable or measurable?
Thx.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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