lkml.org 
[lkml]   [2002]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Intel P6 vs P7 system call performance
Well, in the 2.4.x kernels, the P4 gets compiled as a I686 with NO special
treatment :-) (Not even prefetch, because of an ifdef bug)
The P3 at least gets one level of prefetch and the AMD's get special compile
options(arch=k6,athlon), full prefetch and SSE.

>From Mike Hayward
>Dual Pentium 4 Xeon 2.4Ghz 2.4.19 kernel 33661.9 lps (10 secs, 6 samples)

Hmm, P4 2.4Ghz , also gcc -O3 -march=i686

margit:/disk03/bytebench-3.1/src # ./hanoi 10
576264 loops
margit:/disk03/bytebench-3.1/src # ./hanoi 10
571001 loops
margit:/disk03/bytebench-3.1/src # ./hanoi 10
571133 loops
margit:/disk03/bytebench-3.1/src # ./hanoi 10
570517 loops
margit:/disk03/bytebench-3.1/src # ./hanoi 10
571019 loops
margit:/disk03/bytebench-3.1/src # ./hanoi 10
582688 loops

Margit

-
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 13:31    [W:0.364 / U:0.176 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site