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 [WIP DNM] use x86 hybrid freqs for cpukinds #688

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@bgoglin bgoglin commented Sep 5, 2024

We could use x86 CPUID 0x16 base and max freq info but it doesn't provide anything better than the hybrid core type yet, at least on MTL (while Linux does).

CPUID leaf 0x16 reports base and max freqs. They could be used for better
cpukind info, especially when hybrid CPUs have both normal and low-power
E-core. However 0x16 reports same freqs for these cores on MTL, while Linux
cpufreq is able to distinguish them. Hence those freqs wouldn't bring
any precise/useful info yet.

Signed-off-by: Brice Goglin <[email protected]>
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