Messages in this thread | | | Subject | Re: Intel P6 vs P7 system call performance | From | Terje Eggestad <> | Date | 12 Dec 2002 10:42:56 +0100 |
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On ons, 2002-12-11 at 19:50, H. Peter Anvin wrote: > Terje Eggestad wrote: > > > > > PS: rdtsc on P4 is also painfully slow!!! > > > > Now that's just braindead... >
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.
> -hpa
TJ
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Terje Eggestad mailto:terje.eggestad@scali.no Scali Scalable Linux Systems http://www.scali.com
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