nbench
1。也是linux 平台下測試效能的工具
2。好像比較針對 CPU 作測試
3。官網在 http://www.tux.org/~mayer/linux/bmark.html
怎麼操作
1。在官網下載 nbench-byte-2.2.3.tar.gz
2。解開
3。執行 make 後,就會產生 nbench
4。就可執行 ./nbench 進行測試
測試硬體規格
。Intel(R) Pentium(R) CPU G6950 2.80GHz
。RAM: 2G
。CentOS 5.6
測試結果
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 : 1375.8 : 35.28 : 11.59
STRING SORT : 276.32 : 123.47 : 19.11
BITFIELD : 5.1727e+08 : 88.73 : 18.53
FP EMULATION : 268.56 : 128.87 : 29.74
FOURIER : 29850 : 33.95 : 19.07
ASSIGNMENT : 38.922 : 148.11 : 38.42
IDEA : 7172 : 109.69 : 32.57
HUFFMAN : 2259.9 : 62.67 : 20.01
NEURAL NET : 63.669 : 102.28 : 43.02
LU DECOMPOSITION : 1898.2 : 98.33 : 71.01
==========================ORIGINAL BYTEMARK RESULTS==========================
INTEGER INDEX : 90.755
FLOATING-POINT INDEX: 69.891
Baseline (MSDOS*) : Pentium* 90, 256 KB L2-cache, Watcom* compiler 10.0
==============================LINUX DATA BELOW===============================
CPU : Dual GenuineIntel Intel(R) Pentium(R) CPU G6950 @ 2.80GHz 1200MHz
L2 Cache : 3072 KB
OS : Linux 2.6.18-238.19.1.el5
C compiler :
libc :
MEMORY INDEX : 23.873
INTEGER INDEX : 21.769
FLOATING-POINT INDEX: 38.764
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.real 4m12.448s
user 4m12.143s
sys 0m0.019s
它上面有 pentium 90 跟 amd k6/233 的數值,跟現在的硬體比較是落差很大,也是理所當然的吧,不然現在的cpu應該會哭
項目說明 可參考 http://en.wikipedia.org/wiki/NBench
Numeric sort – Sorts an array of long integers.
String sort – Sorts an array of strings of arbitrary length.
Bitfield – Executes a variety of bit manipulation functions.
Emulated floating-point – A small software floating-point package.
Fourier coefficients – A numerical analysis routine for calculating series approximations of waveforms.
Assignment algorithm – A well-known task allocation algorithm.
Huffman compression – A well-known text and graphics compression algorithm.
IDEA encryption – A relatively new block cipher algorithm.
Neural Net – A small but functional back-propagation network simulator.
LU Decomposition – A robust algorithm for solving linear equations.
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