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It does indicate a leaf of 0x20, higher than the reference manual from June 2021 (latest at the time of writing) of 0x1f, and oddly the manual only references 0x21 and higher as being invalid.
It's in CPUID.1Fh, but I know no one with such processor.
The text was updated successfully, but these errors were encountered:
I believe I have to call GetLogicalProcessorInformationEx with RelationProcessorCore and maybe check PROCESSOR_RELATIONSHIP.EfficiencyClass to maybe get something useful.
And/or try putting thread priority to High or something.
Waiting until I get a processor of my own to do this kind of test.
There must be a way to obtain the cache/core topology on 12th Gen Core Intel processors with hybrid configurations (of P/E cores) using CPUID.
The Optimizing Software for x86 Hybrid Architecture manual may have some info, but only finding bits for HARDWARE GUIDED SCHEDULING and INTEL® THREAD DIRECTOR.
It does indicate a leaf of 0x20, higher than the reference manual from June 2021 (latest at the time of writing) of 0x1f, and oddly the manual only references 0x21 and higher as being invalid.
It's in CPUID.1Fh, but I know no one with such processor.
The text was updated successfully, but these errors were encountered: