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  • #8576 S_x96x_S addikt TESCO-Zsömle #8567
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    S_x96x_S

    addikt

    válasz TESCO-Zsömle #8567 üzenetére

    (ZEN5)
    > A CPU oldali big.LITTLE szvsz nem kamu.

    igen ..
    valami hasonló újdonság szerepel a programozó doksiban is.
    https://www.amd.com/en/support/tech-docs/amd64-architecture-programmers-manual-volumes-1-5
    ( megjegyzés : elég nagy PDF, ne küldjétek ki olvasás nélkül a nyomtatóra, mert 3305 oldal! )

    CPUID Fn8000_0026_EAX_n[N:0] Extended CPU Topology

    31 AsymmetricTopology
    Set to 1 if all components at the current hierarchy level do not report the
    same number of logical processors (NumLogProc).
    30 HeterogeneousCores
    Set to 1 if all components at the current hierarchy level do not consist of
    the cores that report the same core type (CoreType).
    29 EfficiencyRankingAvailable
    Set to 1 if processor power efficiency ranking (PwrEfficiencyRanking) is
    available and varies between cores. Only valid for LevelType = 1h (Core)

    31:28 CoreType
    Reports a value that may be used to distinguish between cores with
    different architectural and microarchitectural properties (for example,
    cores with different performance or power characteristics). Refer to the
    Processor Programming Reference Manual applicable to your product for
    a list of the available core types. Only valid for LevelType = 1h (Core).
    27:24 NativeModelID
    Reports a value that may be used to further differentiate implementation
    specific features. Native mode ID is used in conjunction with the family,
    model, and stepping identifiers. Refer to the Processor Programming
    Reference Manual applicable to your product for a list of Native Mode
    IDs. Only valid for LevelType = 1h (Core).
    23:16 PwrEfficiencyRanking
    Reports a static efficiency ranking between cores of a specific core type,
    where a lower value indicates comparatively lower power consumption
    and lower performance. Only valid for LevelType = 1h (Core).
    15:0 NumLogProc
    Number of logical processors at the current hierarchy level.

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