lkml.org 
[lkml]   [2002]   [Dec]   [12]   [last100]   RSS Feed
Views: [more markup]   [less markup]   [headers]   [forward]  
 
Messages in this thread
/
SubjectRe: Intel P6 vs P7 system call performance
FromTerje Eggestad <>
Date12 Dec 2002 10:42:56 +0100
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

-- 
_________________________________________________________________________
Terje Eggestad                  mailto:terje.eggestad@scali.no
Scali Scalable Linux Systems    http://www.scali.com

Olaf Helsets Vei 6              tel:    +47 22 62 89 61 (OFFICE)
P.O.Box 150, Oppsal                     +47 975 31 574  (MOBILE)
N-0619 Oslo                     fax:    +47 22 62 89 51
NORWAY            
_________________________________________________________________________
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 11:31    [W:0.199 / U:1.020 seconds]
©2003-2008 Jasper Spaans