如何编写C++代码简单测试一下x86和arm的CPU性能

Posted zhangrelay

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了如何编写C++代码简单测试一下x86和arm的CPU性能相关的知识，希望对你有一定的参考价值。

x86：Intel(R) Core(TM) i5-8250U CPU

arm：Qualcomm ® snapdragon ™ 821（MSM8996-AC）

一千万次nop循环c代码如下：

int main() 
    int i;
    for (i = 0; i < 10000000; i++)  
    return (0);

编译和执行，如下：

gcc noploop.c -o noploop 

time ./noploop

这种方式只能大概测试，并不十分精确^_^

左x86，右arm 

x86arm
一千万次real    0m0.029s
user    0m0.028s
sys     0m0.002s		real    0m0.126s
user    0m0.093s
sys     0m0.013s
八千万次real    0m0.135s
user    0m0.135s
sys     0m0.000s		real    0m0.523s
user    0m0.487s
sys     0m0.013s

运算性能：

#include<iostream>
#include<cstdio>
#include<cmath>
#include<vector>
using namespace std;
const long long N = 1e8;
int main()
    double m_pi=M_PI;
    for(long long i=1;i<N;i++)
    
        m_pi=m_pi*i/123456;
    
    cout<<m_pi<<endl;
    return 0;

 x86：

real    0m0.654s
user    0m0.654s
sys     0m0.000s

arm：

real    0m0.948s
user    0m0.887s
sys     0m0.020s

稍微修改一下程序，再测试一下？

#include<iostream>
#include<cstdio>
#include<cmath>
#include<vector>
using namespace std;
const long long N = 8e8;
int main()
    double m_pi=M_PI;
    for(long long i=1;i<N;i++)
    
        m_pi=m_pi*i/1.23456;
    
    cout<<m_pi<<endl;
    return 0;

当然这种代码除了耗电之外，没有任何实际用途！

 

用到的指令如下：

  •   652  gcc noploop.c -o noploop
  •   653  time ./noploop
  •   654  ls
  •   655  gcc noploop8.c -o noploop8
  •   656  time ./noploop8
  •   657  grep model.name /proc/cpuinfo
  •   658  exit
  •   659  g++ calculateloop.cpp -o calculateloop
  •   660  time ./calculateloop
  •   661  ./calculateloop
  •   662  time ./calculateloop
  •   663  g++ calplusloop.cpp -o calplusloop
  •   664  time ./calplusloop

如果偏好是自己编写基准工具，在汇编中，然后对编译的机器代码进行反汇编以进行验证。怎么知道CPU实际上在做什么？

这样做通常是不切实际的，但会尽可能地分享一个案例。这是用于 CPU 基准测试的，将它与其他工具（例如 sysbench、lmbench）和主动基准测试方法一起使用。

这是使用展开的无操作 (NOP) 循环测量 CPU 时钟速度的过程。它旨在简单，最大限度地减少由缓存未命中、停顿周期和分支预测错误引起的变化。在尝试更复杂的 CPU 基准测试之前，该结果提供了一个基线。

由于在 Linux 上运行它，只能读取 /proc/cpuinfo，但并不完全信任它在虚拟化环境中（它可以伪造 cpuid）。更信任的一种方法是简单地从 CPU 性能监控单元读取周期计数器（例如，使用 perf），但在虚拟化环境中访问这些计数器的权限有限或无法访问。

补充

直接用hardinfo测试更轻松一些：

截取部分

-CPU Blowfish-
Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz        8x 1800.00 MHz  1.49
Qualcomm snapdragon 821  Unknown MHz     29.371
 

x86

Benchmarks
**********


CPU Blowfish
------------

-CPU Blowfish-
Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz        8x 1800.00 MHz  1.49
Intel(R) Pentium(R) D CPU 3.00GHz       2x 3000.00 MHz  10.84
Intel(R) Celeron(R) CPU540@ 1.86GHz     1x 1861.00 MHz  25.49
AMD Turion(tm) 64 X2 TL-58      2x 800.00 MHz   12.58
AMD Athlon(tm) 64 X2 Dual Core Processor 3800+  2x 2200.00 MHz  10.71
AMD Athlon(tm) 64 X2 Dual Core Processor 6400+  2x 1000.00 MHz  6.42
Intel(R) Core(TM)2 Extreme CPU X7900@ 2.80GHz   2x 2800.00 MHz  6.81
Intel(R) Pentium(R) M processor 1.70GHz 1x 1700.00 MHz  28.28
AMD Phenom(tm) 8650 Triple-Core Processor       3x 2300.00 MHz  5.96
Intel(R) Pentium(R) 4 CPU 2.40GHz       1x 2400.00 MHz  24.57
AMD Athlon(tm) 64 X2 Dual Core Processor 4400+  2x 1000.00 MHz  7.92
AMD Phenom(tm) II X4 940 Processor      4x 800.00 MHz   3.49
Pentium III (Coppermine)        2x 999.00 MHz   17.81
Intel(R) Pentium(R) 4 CPU 3.20GHz       2x 3200.00 MHz  12.06
Intel(R) Pentium(R) 4 CPU 1500MHz       1x 1495.00 MHz  46.56
AMD Turion(tm) 64 X2 Mobile Technology TL-58    2x 1900.00 MHz  10.10
Intel(R) Celeron(R) M processor 1.40GHz 1x 1395.00 MHz  80.94
Mobile AMD Athlon(tm) XP 2800+  1x 1459.00 MHz  18.04
Intel(R) Celeron(R) CPU420@ 1.60GHz     1x 1600.00 MHz  21.24
AMD Phenom(tm) 9750 Quad-Core Processor 4x 1200.00 MHz  4.29
Intel(R) Atom(TM) CPU N280 @ 1.66GHz    2x 1660.00 MHz  16.76
AMD Athlon(tm) X2 Dual-Core QL-60       2x 1900.00 MHz  10.59
Intel(R) Pentium(R) DualCPUT2370@ 1.73GHz       2x 1733.00 MHz  9.58
AMD Athlon(tm) XP 1900+ 1x 1593.00 MHz  31.62
AMD Athlon(tm) XP 1800+ 1x 1540.00 MHz  23.13
Intel(R) Pentium(R) M processor 1.73GHz 1x 1730.00 MHz  19.66
AMD Sempron(tm) Processor 3200+ 1x 1000.00 MHz  25.47
VIA Esther processor 1500MHz    1x 1499.00 MHz  41.59
Intel(R) Core(TM)2 Quad CPUQ6700@ 2.66GHz       4x 2669.00 MHz  3.17
AMD Athlon(tm) 64 X2 Dual Core Processor 5000+  2x 1000.00 MHz  7.49
Intel(R) Xeon(R) CPU3040@ 1.86GHz       2x 1862.00 MHz  9.11
Intel(R) Pentium(R) DualCPUT2310@ 1.46GHz       2x 1463.00 MHz  11.60
Intel(R) Core(TM)2 Duo CPU P8400@ 2.26GHz       2x 2260.00 MHz  8.29
AMD Turion(tm) X2 Dual-Core Mobile RM-74        2x 600.00 MHz   8.97
Genuine Intel(R) CPU 575@ 2.00GHz       1x 1995.00 MHz  20.36
AMD Turion(tm) 64 X2 Mobile Technology TL-62    2x 800.00 MHz   8.84
AMD Turion(tm) 64 X2 Mobile Technology TL-56    2x 800.00 MHz   10.79
Intel(R) Celeron(R) CPU 2.80GHz 1x 2793.00 MHz  40.87
Intel(R) Pentium(R) 4 CPU 2.80GHz       2x 2800.00 MHz  11.70
Genuine Intel(R) CPU2140@ 1.60GHz       2x 1595.00 MHz  10.67
AMD Athlon(tm) 7750 Dual-Core Processor 2x 1350.00 MHz  7.45
Intel(R) Core(TM)2 Duo CPU E8400@ 3.00GHz       2x 2997.00 MHz  5.54
Intel(R) Core(TM)2 CPU T7400@ 2.16GHz   2x 2161.00 MHz  9.37
Intel(R) Pentium(R) 4 CPU 2.53GHz       1x 2525.00 MHz  48.08
Intel(R) Core(TM)2 Quad CPUQ9550@ 2.83GHz       4x 2830.00 MHz  3.24
Intel(R) Core(TM)2 CPU6700@ 2.66GHz     2x 2667.00 MHz  6.90
AMD Turion(tm) X2 Dual-Core Mobile RM-72        2x 500.00 MHz   11.86
Intel(R) Core(TM)2 Duo CPU T9400@ 2.53GHz       2x 2530.00 MHz  6.76
AMD Athlon(tm) 64 X2 Dual Core Processor 4800+  2x 2512.00 MHz  8.73
Intel(R) Celeron(R) M CPU520@ 1.60GHz   1x 1600.00 MHz  22.07
Intel(R) Core(TM)2 Quad CPUQ8300@ 2.50GHz       4x 2497.00 MHz  3.35
PowerPC 740/750 1x 280.00 MHz   172.82

CPU CryptoHash
--------------

-CPU CryptoHash-
Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz        8x 1800.00 MHz  746.10
Intel(R) Atom(TM) CPU330 @ 1.60GHz      4x 1596.00 MHz  105.57
Intel(R) Core(TM)2 Duo CPU T5250@ 1.50GHz       2x 1500.00 MHz  102.95
Intel(R) Celeron(R) M processor900MHz   1x 900.00 MHz   24.34
Intel(R) Core(TM)2 CPU E8400@ 3.00GHz   2x 3000.00 MHz  163.39
Intel(R) Xeon(R) CPU E5405@ 2.00GHz     2x 1995.00 MHz  117.48
Intel(R) Core(TM) Duo CPUT2450@ 2.00GHz 2x 2000.00 MHz  127.24
Intel(R) Pentium(R) 4 CPU 2.00GHz       1x 1994.00 MHz  24.65
AMD Phenom(tm) 9350e Quad-Core Processor        4x 2000.00 MHz  237.01
AMD Turion(tm) X2 Ultra Dual-Core Mobile ZM-82  2x 600.00 MHz   100.06
AMD Athlon(tm) XP 3000+ 1x 2158.00 MHz  66.54
Intel(R) Celeron(R) M CPU520@ 1.60GHz   1x 1600.00 MHz  52.31
Intel(R) Core(TM)2 Quad CPUQ6700@ 2.66GHz       4x 2669.00 MHz  264.06
AMD Athlon(tm) XP 1900+ 1x 1593.00 MHz  31.63
Intel(R) Pentium(R) 4 CPU 3.20GHz       2x 3200.00 MHz  66.61
AMD Sempron(tm) 2600+   1x 1840.00 MHz  53.87
AMD Athlon(tm) 64 X2 Dual Core Processor 3800+  2x 2200.00 MHz  94.12
AMD Turion(tm) 64 X2 Mobile Technology TL-62    2x 800.00 MHz   119.43
AMD Athlon(tm) XP 2000+ 1x 1667.00 MHz  45.76
AMD Athlon(tm) 64 Processor 3500+       1x 1000.00 MHz  62.20
AMD Turion(tm) 64 X2 Mobile Technology TL-56    2x 800.00 MHz   92.19
AMD Athlon(tm) 64 X2 Dual Core Processor 4000+  2x 1000.00 MHz  97.04
Intel(R) Pentium(R) D CPU 3.00GHz       2x 3000.00 MHz  96.75
Mobile AMD Sempron(tm) Processor 3600+  1x 800.00 MHz   54.44
Intel(R) Core(TM)2 Quad CPUQ9650@ 3.00GHz       4x 2997.00 MHz  303.51
AMD Sempron(tm) Processor 3600+ 1x 1000.00 MHz  43.98
Intel(R) Core(TM)2 Duo CPU T9400@ 2.53GHz       2x 2530.00 MHz  148.71
AMD Turion(tm) 64 X2 Mobile Technology TL-58    2x 1900.00 MHz  101.69
Intel(R) Core(TM)2 Duo CPU P7350@ 2.00GHz       2x 2000.00 MHz  103.95
VIA Esther processor 1500MHz    1x 1499.00 MHz  7.75
Intel(R) Core(TM)2 Duo CPU P8600@ 2.40GHz       2x 2400.00 MHz  150.44
Intel(R) Core(TM)2 Duo CPU T7700@ 2.40GHz       2x 2400.00 MHz  142.54
Intel(R) Core(TM)2 Duo CPU T5550@ 1.83GHz       2x 1829.00 MHz  122.42
Intel(R) Core(TM)2 Duo CPU T7250@ 2.00GHz       2x 2001.00 MHz  121.92
Intel(R) Core(TM)2 CPU6700@ 2.66GHz     2x 2667.00 MHz  163.64
Intel(R) Pentium(R) 4 CPU 2.40GHz       1x 2400.00 MHz  30.96
Intel(R) Core(TM)2 Quad CPUQ9400@ 2.66GHz       4x 2660.00 MHz  296.87
AMD Athlon(tm) 64 Processor 3200+       1x 1000.00 MHz  42.30
Intel(R) Pentium(R) DualCPUT3200@ 2.00GHz       2x 2000.00 MHz  88.54
Intel(R) Pentium(R) 4 CPU 2.26GHz       1x 2267.00 MHz  29.41
AMD Sempron(tm) Processor 3400+ 1x 1000.00 MHz  53.84
AMD Sempron(tm) Processor 3000+ 1x 1800.00 MHz  47.79
AMD Athlon(tm) XP 2400+ 1x 1991.00 MHz  61.64
Intel(R) Atom(TM) CPU Z530 @ 1.60GHz    2x 1600.00 MHz  54.89
Pentium III (Coppermine)        1x 700.00 MHz   26.99
Intel(R) Core(TM) i7 CPU 920@ 2.67GHz   8x 3799.00 MHz  390.24
AMD Athlon(tm) 64 X2 Dual Core Processor 6000+  2x 3051.00 MHz  146.74
AMD Turion(tm) 64 Mobile Technology ML-37       1x 2000.00 MHz  42.21
Intel(R) Xeon(R) CPU3040@ 1.86GHz       2x 1862.00 MHz  127.83
AMD Athlon(tm) XP 2500+ 1x 1792.00 MHz  39.66
Intel(R) Core(TM)2 Duo CPU T9500@ 2.60GHz       2x 2593.00 MHz  172.64

CPU Fibonacci
-------------

-CPU Fibonacci-
Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz        8x 1800.00 MHz  0.37
AMD Phenom(tm) 9500 Quad-Core Processor 4x 1100.00 MHz  3.06
Intel(R) Core(TM)2 Duo CPU T7250@ 2.00GHz       2x 2001.00 MHz  4.57
Intel(R) Pentium(R) 4 CPU 2.80GHz       1x 2791.00 MHz  5.65
AMD Athlon(tm) Processor        1x 1210.00 MHz  7.34
Intel(R) Core(TM)2 CPU T5200@ 1.60GHz   2x 1067.00 MHz  7.27
Intel(R) Atom(TM) CPU330 @ 1.60GHz      4x 1596.00 MHz  8.79
AMD Phenom(tm) 9150e Quad-Core Processor        4x 900.00 MHz   3.28
AMD Turion(tm) 64 Mobile Technology MK-36       1x 800.00 MHz   6.20
AMD Athlon(tm) 64 Processor 3200+       1x 1000.00 MHz  5.76
Intel(R) Core(TM)2 Quad CPUQ9400@ 2.66GHz       4x 2003.00 MHz  2.76
Intel(R) Core(TM)2 Duo CPU T7500@ 2.20GHz       1x 2200.00 MHz  4.09
AMD Athlon(tm) XP       1x 906.00 MHz   33.45
Intel(R) Core(TM)2 Quad CPUQ6700@ 2.66GHz       4x 2669.00 MHz  3.54
Intel(R) Pentium(R) 4 CPU 2.00GHz       1x 1994.00 MHz  8.70
Intel(R) Core(TM)2 Duo CPU E6550@ 2.33GHz       2x 2700.00 MHz  3.66
Intel(R) Core(TM)2 Duo CPU T7100@ 1.80GHz       2x 1801.00 MHz  4.79
Dual Core AMD Opteron(tm) Processor 165 2x 1979.00 MHz  4.26
Intel(R) Pentium(R) 4 CPU 2.40GHz       1x 2400.00 MHz  6.35
Intel(R) Core(TM)2 Duo CPU P8600@ 2.40GHz       1x 2400.00 MHz  3.37
AMD Turion(tm) X2 Dual-Core Mobile RM-70        2x 500.00 MHz   4.97
Intel(R) Pentium(R) 4 CPU 2.53GHz       1x 2525.00 MHz  10.36
Unknown CPU Type        1x 1660.00 MHz  5.73
Pentium III (Coppermine)        2x 999.00 MHz   10.22
Intel(R) Core(TM)2 CPU T5600@ 1.83GHz   2x 1000.00 MHz  5.24
Intel(R) Celeron(R) CPU 3.06GHz 1x 3059.00 MHz  3.96
AMD Phenom(tm) 9850 Quad-Core Processor 4x 1300.00 MHz  2.59
Intel(R) Pentium(R) 4 CPU 3.00GHz       2x 3458.00 MHz  4.98
AMD Sempron(tm) Processor LE-1200       1x 2109.00 MHz  6.08
Intel(R) Pentium(R) 4 CPU 2.80GHz       1x 2791.00 MHz  5.65
AMD Athlon(tm) 64 X2 Dual Core Processor 4000+  2x 1000.00 MHz  4.12
AMD Athlon(tm) XP 1600+ 1x 1398.00 MHz  6.39
Genuine Intel(R) CPU T2050@ 1.60GHz     2x 800.00 MHz   6.10
Intel(R) Celeron(R) CPU560@ 2.13GHz     1x 2128.00 MHz  4.78
AMD Phenom(tm) 8650 Triple-Core Processor       3x 2300.00 MHz  3.09
Intel(R) Core(TM) i7 CPU 920@ 2.67GHz   8x 3799.00 MHz  2.79
AMD Athlon(tm) 64 X2 Dual Core Processor 5000+  2x 1000.00 MHz  3.11
AMD Athlon(tm) XP 2500+ 1x 1792.00 MHz  7.18
Intel(R) Xeon(R) CPU3040@ 1.86GHz       2x 1862.00 MHz  4.81
AMD Athlon(tm) X2 Dual-Core QL-60       2x 1900.00 MHz  4.35
Intel(R) Core(TM)2 CPU T7400@ 2.16GHz   2x 2161.00 MHz  4.98
AMD Turion(tm) 64 X2 Mobile Technology TL-60    2x 2000.00 MHz  4.19
AMD Turion(tm) 64 X2 Mobile Technology TL-52    2x 1600.00 MHz  5.45
AMD Athlon(tm) 64 X2 Dual Core Processor 6000+  2x 3051.00 MHz  2.75
Intel(R) Atom(TM) CPU N280 @ 1.66GHz    2x 1000.00 MHz  8.97
Intel(R) Core(TM)2 Quad CPUQ9550@ 2.83GHz       4x 2830.00 MHz  2.72
Intel(R) Core(TM)2 Duo CPU T7300@ 2.00GHz       2x 2001.00 MHz  4.77
AMD Sempron(tm) Processor 3600+ 1x 1000.00 MHz  5.70
AMD Athlon(tm)  1x 2305.00 MHz  4.47
AMD Athlon(tm) X2 Dual Core Processor BE-2300   2x 1899.00 MHz  4.37
Intel(R) Core(TM)2 Duo CPU E6750@ 2.66GHz       2x 2671.00 MHz  4.10
PowerPC 740/750 1x 280.00 MHz   58.08

CPU N-Queens
------------

-CPU N-Queens-
Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz        8x 1800.00 MHz  7.04
AMD Athlon(tm) 64 X2 Dual Core Processor 5400+  2x 1000.00 MHz  15.06
Genuine Intel(R) CPU T2080@ 1.73GHz     2x 1730.00 MHz  33.31
Intel(R) Core(TM)2 Duo CPU T5450@ 1.66GHz       2x 1660.00 MHz  14.49
Intel(R) Core(TM)2 QuadCPU Q9300@ 2.50GHz       4x 3000.00 MHz  14.10
Intel(R) Atom(TM) CPU Z530 @ 1.60GHz    2x 1600.00 MHz  18.70
Intel(R) Atom(TM) CPU330 @ 1.60GHz      4x 1596.00 MHz  26.07
AMD Athlon(tm) XP 1600+ 1x 1398.00 MHz  19.85
Intel(R) Core(TM)2 Quad CPUQ6700@ 2.66GHz       4x 2669.00 MHz  17.01
Intel(R) Pentium(R) 4 CPU 2.60GHz       2x 2600.00 MHz  14.83
Intel(R) Core(TM)2 CPU6320@ 1.86GHz     2x 1860.00 MHz  16.54
Intel(R) Core(TM)2 Extreme CPU X7900@ 2.80GHz   2x 2800.00 MHz  7.02
Intel(R) Core(TM)2 QuadCPU Q9450@ 2.66GHz       4x 2000.00 MHz  12.97
Intel(R) Core(TM)2 CPU E8400@ 3.00GHz   2x 3000.00 MHz  7.84
Pentium III (Coppermine)        2x 999.00 MHz   35.15
AMD Athlon(tm) 64 X2 Dual Core Processor 4000+  2x 1000.00 MHz  19.51
AMD Turion(tm) 64 X2 Mobile Technology TL-50    2x 800.00 MHz   23.26
Intel(R) Pentium(R) D CPU 3.40GHz       2x 3400.00 MHz  13.51
Pentium III (Coppermine)        2x 999.00 MHz   35.15
AMD Athlon(tm) 64 X2 Dual Core Processor 3600+  2x 1000.00 MHz  22.98
AMD Athlon(tm) 64 X2 Dual Core Processor 5200+  2x 2705.00 MHz  14.95
AMD Athlon(tm) 64 X2 Dual-Core Processor TK-55  2x 800.00 MHz   20.49
Intel(R) Core(TM)2 Duo CPU E6850@ 3.00GHz       2x 3000.00 MHz  7.52
Intel(R) Core(TM)2 Duo CPU P8400@ 2.26GHz       2x 2260.00 MHz  10.39
Intel(R) Core(TM)2 Quad CPUQ9400@ 2.66GHz       4x 2003.00 MHz  18.25
AMD Athlon(tm) XP 1900+ 1x 1593.00 MHz  26.74
Intel(R) Core(TM) Duo CPUT2350@ 1.86GHz 2x 1867.00 MHz  22.01
Intel(R) Core(TM)2 Duo CPU E8400@ 3.00GHz       2x 2997.00 MHz  7.66
AMD Athlon(tm) XP 2800+ 1x 2087.00 MHz  13.55
Genuine Intel(R) CPU T2500@ 2.00GHz     2x 2000.00 MHz  28.39
AMD Turion(tm) 64 X2 Mobile Technology TL-58    2x 1900.00 MHz  20.02
Intel(R) Pentium(R) 4 CPU 3.40GHz       2x 3400.00 MHz  15.30
Intel(R) Celeron(R) M processor900MHz   1x 900.00 MHz   33.26
AMD Athlon(tm) X2 Dual-Core QL-60       2x 1900.00 MHz  20.34
Intel(R) Core(TM)2 Duo CPU T5850@ 2.16GHz       2x 2167.00 MHz  10.37
Mobile AMD Athlon(tm) XP-M Processor 3000+      1x 799.00 MHz   52.78
AMD Phenom(tm) 9500 Quad-Core Processor 4x 1100.00 MHz  10.06
Intel(R) Celeron(R) M processor 1.40GHz 1x 1395.00 MHz  94.05
Mobile AMD Athlon(tm) XP 2800+  1x 1459.00 MHz  13.36
AMD Athlon(tm) 64 Processor 3000+       1x 1800.00 MHz  18.08
Genuine Intel(R) CPU L2400@ 1.66GHz     2x 1660.00 MHz  19.55
AMD Sempron(tm) Processor 2800+ 1x 1999.00 MHz  17.23
AMD Sempron(tm) 2600+   1x 1840.00 MHz  14.69
Intel(R) Pentium(R) M processor 1600MHz 1x 1600.00 MHz  15.23
Genuine Intel(R) CPU 575@ 2.00GHz       1x 1995.00 MHz  15.88
Genuine Intel(R) CPU T2300@ 1.66GHz     2x 1660.00 MHz  27.25
Intel(R) Pentium(R) M processor 1.70GHz 1x 1700.00 MHz  22.55
AMD Athlon(tm) XP processor 1800+       1x 1533.00 MHz  17.55
Intel(R) Core(TM)2 Duo CPU T5750@ 2.00GHz       2x 1994.00 MHz  11.14
Intel(R) Core(TM)2 Duo CPU T7250@ 2.00GHz       2x 2001.00 MHz  11.39
Intel(R) Pentium(R) 4 CPU 1500MHz       1x 1495.00 MHz  28.46

CPU Zlib
--------

-CPU Zlib-
Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz        8x 1800.00 MHz  0.97
PowerPC 740/750 1x 280.00 MHz   2150.60

FPU FFT
-------

-FPU FFT-
Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz        8x 1800.00 MHz  1.13
Intel(R) Pentium(R) DualCPUT3200@ 2.00GHz       2x 2000.00 MHz  5.50
Intel(R) Celeron(R) CPU 2.53GHz 1x 2527.00 MHz  10.12
Genuine Intel(R) CPU T1350@ 1.86GHz     1x 1867.00 MHz  83.47
AMD Turion(tm) 64 X2 Mobile Technology TL-60    2x 2000.00 MHz  8.22
AMD Turion(tm) X2 Dual-Core Mobile RM-70        2x 500.00 MHz   8.31
Intel(R) Core(TM) Duo CPUT2350@ 1.86GHz 2x 1867.00 MHz  5.36
Intel(R) Core(TM)2 Duo CPU T5750@ 2.00GHz       2x 1994.00 MHz  4.23
Intel(R) Core(TM)2 Duo CPU T9500@ 2.60GHz       2x 2593.00 MHz  3.12
AMD Athlon(tm) X2 Dual-Core QL-60       2x 1900.00 MHz  9.08
Intel(R) Core(TM)2 Duo CPU T5250@ 1.50GHz       2x 1500.00 MHz  5.51
Mobile AMD Athlon(tm) XP-M Processor 3000+      1x 799.00 MHz   43.15
AMD Athlon(tm) 64 X2 Dual Core Processor 4000+  2x 1000.00 MHz  8.00
AMD Athlon(tm) XP processor 1800+       1x 1533.00 MHz  25.14
Genuine Intel(R) CPU2140@ 1.60GHz       2x 1595.00 MHz  5.44
Intel(R) Core(TM)2 Quad CPUQ6600@ 2.40GHz       4x 2400.00 MHz  1.63
Intel(R) Core(TM)2 Duo CPU P7350@ 2.00GHz       2x 2000.00 MHz  4.76
Genuine Intel(R) CPU T2080@ 1.73GHz     2x 1730.00 MHz  4.99
Intel(R) Celeron(R) CPU 2.50GHz 1x 2492.00 MHz  14.46
Intel(R) Pentium(R) M processor 1.86GHz 1x 1867.00 MHz  11.88
Intel(R) Core(TM)2 CPU T5200@ 1.60GHz   2x 1600.00 MHz  6.49
Intel(R) Core(TM)2 CPU6320@ 1.86GHz     2x 1860.00 MHz  4.91
AMD Athlon(tm) XP       1x 906.00 MHz   84.35
AMD Athlon(tm) 64 Processor 3000+       1x 1800.00 MHz  25.19
Intel(R) Pentium(R) 4 CPU 2.60GHz       2x 2600.00 MHz  8.54
Intel(R) Core(TM)2 Quad CPUQ9400@ 2.66GHz       4x 2660.00 MHz  1.49
Intel(R) Pentium(R) M processor 1600MHz 1x 1600.00 MHz  13.50
Pentium(R) Dual-Core CPU T4200@ 2.00GHz 2x 2000.00 MHz  4.62
Intel(R) Core(TM)2 Quad CPU @ 2.40GHz   4x 2400.00 MHz  1.70
Intel(R) Core(TM)2 Quad CPUQ8300@ 2.50GHz       4x 2497.00 MHz  1.66
Intel(R) Core(TM)2 Extreme CPU X7900@ 2.80GHz   2x 2800.00 MHz  3.06
Intel(R) Celeron(R) D CPU 3.20GHz       1x 3196.00 MHz  8.55
AMD Sempron(tm) 2600+   1x 1840.00 MHz  20.95
AMD Athlon(tm) 64 X2 Dual Core Processor 4400+  2x 1000.00 MHz  6.80
Intel(R) Celeron(R) CPU 2.66GHz 1x 2666.00 MHz  9.89
Intel(R) Core(TM) Duo CPUT2450@ 2.00GHz 2x 2000.00 MHz  4.33
Intel(R) Celeron(R) M CPU520@ 1.60GHz   1x 1600.00 MHz  11.35
Intel(R) Pentium(R) 4 CPU 3.06GHz       2x 3065.00 MHz  7.45
Intel(R) Core(TM)2 CPU4300@ 1.80GHz     2x 1800.00 MHz  5.37
Intel(R) Core(TM)2 CPU6400@ 2.13GHz     2x 2128.00 MHz  4.68
AMD Turion(tm) 64 Mobile Technology MK-36       1x 800.00 MHz   19.96
Intel(R) Core(TM)2 CPU6600@ 2.40GHz     2x 2400.00 MHz  3.55
Intel(R) Core(TM)2 Duo CPU T7250@ 2.00GHz       2x 2001.00 MHz  4.16
Intel(R) Celeron(R) M processor900MHz   1x 900.00 MHz   24.21
AMD Sempron(tm) Processor 3400+ 1x 1000.00 MHz  17.11
AMD Athlon(tm) XP 2500+ 1x 1792.00 MHz  27.33
AMD Sempron(tm) Processor 3000+ 1x 1800.00 MHz  18.94
AMD Athlon(tm) XP 2200+ 1x 1782.00 MHz  22.20
Intel(R) Pentium(R) 4 CPU 3.06GHz       2x 3065.00 MHz  7.45
AMD Processor model unknown     2x 3006.00 MHz  5.24
AMD Turion(tm) 64 X2 Mobile Technology TL-62    2x 800.00 MHz   7.52

FPU Raytracing
--------------

-FPU Raytracing-
Intel(R) Core(TM) i5-8250U CPU @ 1.60GHz        8x 1800.00 MHz  2.05
Intel(R) Core(TM) Duo CPUT2450@ 2.00GHz 2x 2000.00 MHz  28.36
AMD Athlon(tm) XP 2200+ 1x 1782.00 MHz  29.74
Intel(R) Pentium(R) DualCPUT2370@ 1.73GHz       2x 1733.00 MHz  25.82
AMD Sempron(tm) Processor 3200+ 1x 1000.00 MHz  30.19
AMD Athlon(tm) 64 X2 Dual-Core Processor TK-55  2x 800.00 MHz   16.47
Intel(R) Core(TM)2 CPU6600@ 2.40GHz     2x 2400.00 MHz  11.24
Intel(R) Core(TM)2 Duo CPU T5270@ 1.40GHz       2x 1400.00 MHz  32.81
AMD Athlon(tm) 64 X2 Dual-Core Processor TK-53  2x 800.00 MHz   18.47
Intel(R) Pentium(R) M processor 1.86GHz 1x 1867.00 MHz  28.20
Intel(R) Core(TM)2 Duo CPU T5750@ 2.00GHz       2x 1994.00 MHz  16.38
AMD Turion(tm) 64 Mobile Technology ML-32       1x 800.00 MHz   28.43
Intel(R) Celeron(R) CPU530@ 1.73GHz     1x 2593.00 MHz  17.55
Intel(R) Core(TM) i7 CPU 920@ 2.67GHz   8x 3799.00 MHz  4.73
Intel(R) Core(TM)2 Quad CPUQ9650@ 3.00GHz       4x 2997.00 MHz  18.84
AMD Turion(tm) 64 Mobile Technology MK-36       1x 800.00 MHz   30.84
Intel(R) Pentium(R) D CPU 3.40GHz       2x 3400.00 MHz  25.42
AMD Athlon(tm) X2 Dual-Core QL-60       2x 1900.00 MHz  18.30
Intel(R) Pentium(R) III CPU - S 1400MHz 1x 1392.00 MHz  33.36
AMD Phenom(tm) II X4 20 Processor       4x 3654.00 MHz  13.29
Intel(R) Core(TM)2 CPU E8400@ 3.00GHz   2x 3000.00 MHz  15.79
Intel(R) Pentium(R) 4 CPU 2.66GHz       1x 2676.00 MHz  32.38
Intel(R) Pentium(R) 4 CPU 2.60GHz       2x 2600.00 MHz  57.37
Intel(R) Core(TM)2 Duo CPU P9500@ 2.53GHz       2x 2535.00 MHz  5.51
Intel(R) Celeron(R) M processor900MHz   1x 900.00 MHz   64.67
AMD Athlon(tm) 64 X2 Dual Core Processor 4800+  2x 2512.00 MHz  12.80
Intel(R) Pentium(R) M processor 1.73GHz 1x 1730.00 MHz  27.69
Genuine Intel(R) CPU T2080@ 1.73GHz     2x 1730.00 MHz  31.11
AMD Athlon(tm) 64 Processor 4000+       1x 1000.00 MHz  20.49
Intel(R) Pentium(R) 4 CPU 2.53GHz       1x 2525.00 MHz  36.54
Intel(R) Celeron(R) CPU560@ 2.13GHz     1x 2128.00 MHz  21.15
Intel(R) Core(TM)2 Extreme CPU X7900@ 2.80GHz   2x 2800.00 MHz  18.27
Intel(R) Core(TM)2 Duo CPU T9400@ 2.53GHz       2x 2530.00 MHz  5.59
AMD Athlon(tm) 64 X2 Dual Core Processor 6400+  2x 1000.00 MHz  10.93
Intel(R) Celeron(R) M CPU420@ 1.60GHz   1x 1599.00 MHz  37.00
Intel(R) Xeon(R) CPU E5405@ 2.00GHz     2x 1995.00 MHz  17.81
Genuine Intel(R) CPU2140@ 1.60GHz       2x 1595.00 MHz  22.05
Intel(R) Pentium(R) M processor 1700MHz 1x 1700.00 MHz  27.28
Pentium II (Deschutes)  1x 401.00 MHz   124.07
Intel(R) Core(TM)2 Duo CPU T8100@ 2.10GHz       2x 2094.00 MHz  23.76
Intel(R) Core(TM)2 CPU4300@ 1.80GHz     2x 1800.00 MHz  18.17
AMD Athlon(tm) XP 3000+ 1x 2158.00 MHz  23.07
AMD Phenom(tm) 8450 Triple-Core Processor       3x 1100.00 MHz  18.56
Intel(R) Core(TM)2 Duo CPU P8400@ 2.26GHz       2x 2260.00 MHz  12.07
AMD Athlon(tm) XP 1800+ 1x 1540.00 MHz  31.73
Intel(R) Celeron(R) CPU550@ 2.00GHz     1x 1995.00 MHz  23.90
Intel(R) Pentium(R) 4 CPU 3.20GHz       2x 3200.00 MHz  31.44
Intel(R) Pentium(R) M processor 1.80GHz 1x 1800.00 MHz  27.13
Intel(R) Celeron(R) CPU 2.80GHz 1x 2793.00 MHz  81.05
Genuine Intel(R) CPU T1350@ 1.86GHz     1x 1867.00 MHz  222.18
Intel(R) Pentium(R) 4 CPU 2.80GHz       1x 2791.00 MHz  28.66
PowerPC 740/750 1x 280.00 MHz   161.31

ARM：

Benchmarks
**********


CPU Blowfish
------------

-CPU Blowfish-
Qualcomm snapdragon 821  Unknown MHz     29.371
Intel(R) Celeron(R) M processor         1.50GHz (null)  26.1876862
PowerPC 740/750 (280.00MHz)     (null)  172.816713

CPU CryptoHash
--------------

-CPU CryptoHash-
Qualcomm snapdragon 821  Unknown MHz     79.139

CPU Fibonacci
-------------

-CPU Fibonacci-
Qualcomm snapdragon 821  Unknown MHz     4.549
Intel(R) Celeron(R) M processor         1.50GHz (null)  8.1375674
PowerPC 740/750 (280.00MHz)     (null)  58.07682

CPU N-Queens
------------

-CPU N-Queens-
Qualcomm snapdragon 821  Unknown MHz     11.847

FPU FFT
-------

-FPU FFT-
Qualcomm snapdragon 821  Unknown MHz     16.675

FPU Raytracing
--------------

-FPU Raytracing-
Qualcomm snapdragon 821  Unknown MHz     7.215
Intel(R) Celeron(R) M processor         1.50GHz (null)  40.8816714
PowerPC 740/750 (280.00MHz)     (null)  161.312647

以上是关于如何编写C++代码简单测试一下x86和arm的CPU性能的主要内容，如果未能解决你的问题，请参考以下文章

如何实现对ARM汇编指令的调试？

从x86到ARM，代码移植指北

从x86到ARM，代码移植指北

从x86到ARM，代码移植指北

从x86到ARM，代码移植指北

将两个 C++ 文件添加到 ARM MCU 项目时，.ELF 太大