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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.


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