ETUDE DE PERFORMANCE

PYTHON VERSUS C

SIMPLE CODE BENCHMARK

{ x + y = 14
{ x^2 + y^2 = 100

Python

C

   1 │ #!/usr/bin/python                                                             
   2 │ x = 1
   3 │ while x <= 14:
   4 │     y = 14 - x
   5 │     print (x, y)
   6 │     if x**2 + y**2 == 100:
   7 │         print ("match")
   8 │     x = x + 1

./test.py  0.02s user 0.00s system 98%
cpu 0.020 total

#include <stdio.h>

int main()
{
    int x, y, t;
    for (x = 1; x <= 14; x++)
    {
        y = 14 - x;
        printf("%d|%d\n", x, y);
        if ((x*x) + (y*y) == 100)
        printf("match\n");
    }
    return 0;
}

0.00s user 0.00s system 0%
cpu 0.001 total

STRESS METHOD

PYTHON

C

   1 │ #include <stdio.h>
   2 │ 
   3 │ int main ()
   4 │ {
   5 │   int i;
   6 │   for (i = 0; i < 1000000; i++)
   7 │     printf ("%d\n", i);
   8 │   return 0;
   9 │ }

./test2_c  0.18s user 0.82s system 5%
cpu 19.216 total

   1 │ #!/usr/bin/python                                                             
   2 │ for i in range(0, 1000000):
   3 │     print (i)

./test2_py  1.75s user 1.13s system 14%
cpu 19.301 total

CONCLUSION

BETWEEN C and PYTHON

The C is slightly faster.

The C consumes less CPU.

Gestion des PARAMETRES et options

regex methods

OPTIMISATION

HORNER METHOD