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Arm desktop: emulation
The final question is: “Is it worth using x86(-64) emulation at all?”
SectionFeaturesCryptoAES, CRC, SHA, PMULLTSO emulationApple Silicon TSO bit, LRCPC, LRCPC2, LSE2Flags stuffAFP, FlagM, FlagM2Atomic operationsLSEMiscFCMA, FRINTTS, RPRES, SVE, SVE_bitpermFutureRCPC3, CSSC, RANDThe Ampere Altra is an old, Arm v8.2 CPU. Its Neoverse-N1 cores are from 2019 and can support only a small subset of entries from the table above: all crypto ones + LSE and LRCPC. After publishing post I got some additional hints from FEX-emu folks to make emulation a bit faster.
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