Re: Intel P6 vs P7 system call performance

H. Peter Anvin (hpa@zytor.com)
Thu, 12 Dec 2002 11:03:42 -0800

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In reply to: Arjan van de Ven: "Re: 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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Next message: Kevin Easton: "2.4.20 st + aic7xxx (Adaptec 19160B) + VIA KT333 repeatable freeze"
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In reply to: Arjan van de Ven: "Re: Intel P6 vs P7 system call performance"