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    SubjectRe: Intel P6 vs P7 system call performance
    Arjan van de Ven wrote:
    > On Thu, 2002-12-12 at 10:42, Terje Eggestad wrote:
    >
    >
    >>It takes about 11 cycles on athlon, 34 on PII, and a whooping 84 on P4.
    >>
    >>For a simple op like that, even 11 is a lot... Really makes you wonder.
    >
    >
    > wasn't rdtsc also supposed to be a pipeline sync of the cpu?
    > (or am I confusing it with cpuid)

    That's CPUID.

    -hpa

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