Re: poor gcc-4.0 performance
BYTEmark* Native Mode Benchmark ver. 2 (10/95)
Index-split by Andrew D. Balsa (11/97)
Linux/Unix* port by Uwe F. Mayer (12/96,11/97)
TEST : Iterations/sec. : Old Index : New Index
: : Pentium 90* : AMD K6/233*
--------------------:------------------:-------------:------------
NUMERIC SORT : 1772.9 : 45.47 : 14.93
STRING SORT : 167.69 : 74.93 : 11.60
BITFIELD : 4.0331e+08 : 69.18 : 14.45
FP EMULATION : 136.48 : 65.49 : 15.11
FOURIER : 16345 : 18.59 : 10.44
ASSIGNMENT : 19.666 : 74.83 : 19.41
IDEA : 3409.2 : 52.14 : 15.48
HUFFMAN : 1412.1 : 39.16 : 12.50
NEURAL NET : 26.337 : 42.31 : 17.80
LU DECOMPOSITION : 974.56 : 50.49 : 36.46
==========================ORIGINAL BYTEMARK
RESULTS==========================
INTEGER INDEX : 58.548
FLOATING-POINT INDEX: 34.114
Baseline (MSDOS*) : Pentium* 90, 256 KB L2-cache, Watcom* compiler 10.0
==============================LINUX DATA
BELOW===============================
CPU : AuthenticAMD AMD Athlon(tm) 64 Processor 3000+ 1872MHz
L2 Cache : 512 KB
OS : Linux 2.6.11-9-amd64-k8
C compiler : gcc version 3.4.5 20050605 (prerelease) (Debian
3.4.4-0)
libc : ld-2.3.2.so
MEMORY INDEX : 14.817
INTEGER INDEX : 14.457
FLOATING-POINT INDEX: 18.921
Baseline (LINUX) : AMD K6/233*, 512 KB L2-cache, gcc 2.7.2.3, libc-5.4.38
* Trademarks are property of their respective holder.
-------------------
BYTEmark* Native Mode Benchmark ver. 2 (10/95)
Index-split by Andrew D. Balsa (11/97)
Linux/Unix* port by Uwe F. Mayer (12/96,11/97)
TEST : Iterations/sec. : Old Index : New Index
: : Pentium 90* : AMD K6/233*
--------------------:------------------:-------------:------------
NUMERIC SORT : 924.8 : 23.72 : 7.79
STRING SORT : 163.04 : 72.85 : 11.28
BITFIELD : 4.4579e+08 : 76.47 : 15.97
FP EMULATION : 144.52 : 69.35 : 16.00
FOURIER : 16233 : 18.46 : 10.37
ASSIGNMENT : 17.86 : 67.96 : 17.63
IDEA : 4334.3 : 66.29 : 19.68
HUFFMAN : 1289.7 : 35.76 : 11.42
NEURAL NET : 29.565 : 47.49 : 19.98
LU DECOMPOSITION : 1013.5 : 52.51 : 37.91
==========================ORIGINAL BYTEMARK
RESULTS==========================
INTEGER INDEX : 54.758
FLOATING-POINT INDEX: 35.839
Baseline (MSDOS*) : Pentium* 90, 256 KB L2-cache, Watcom* compiler 10.0
==============================LINUX DATA
BELOW===============================
CPU : AuthenticAMD AMD Athlon(tm) 64 Processor 3000+ 1872MHz
L2 Cache : 512 KB
OS : Linux 2.6.11-9-amd64-k8
C compiler : gcc-4.0
libc : ld-2.3.2.so
MEMORY INDEX : 14.697
INTEGER INDEX : 12.938
FLOATING-POINT INDEX: 19.878
Baseline (LINUX) : AMD K6/233*, 512 KB L2-cache, gcc 2.7.2.3, libc-5.4.38
* Trademarks are property of their respective holder.
As you see some results are better while running nbench compiled with
gcc-4.0 and some are not.
--
Registered Linux User 369908
alterfenix@jabberpl.org
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