Python_性能测试

 1 from memory_profiler import profile
 2 
 3 @profile    #修饰器
 4 def isPrime(n):
 5     if n == 2:
 6         return True
 7     for i in range(2,int(n**0.5)+2):
 8         if n%i == 0:
 9             return False
10     return True
11 
12 isPrime(99999999999999999999999999999999)
13 
14 
15 ‘‘‘
16 Line #    Mem usage    Increment   Line Contents
17 ================================================
18      3     10.9 MiB      0.0 MiB   @profile    #修饰器
19      4                             def isPrime(n):
20      5     10.9 MiB      0.0 MiB       if n == 2:
21      6                                     return True
22      7     10.9 MiB      0.0 MiB       for i in range(2,int(n**0.5)+2):
23      8     10.9 MiB      0.0 MiB           if n%i == 0:
24      9     10.9 MiB      0.0 MiB               return False
25     10                                 return True
26 ‘‘‘