Python_性能测试

使用pip安装Python扩展库memory_profiler

 from memory_profiler import profile

 @profile    #修饰器
 def isPrime(n):
     if n == 2:
         return True
     for i in range(2,int(n**0.5)+2):
         if n%i == 0:
             return False
     return True

 isPrime(99999999999999999999999999999999)

 '''
 Line #    Mem usage    Increment   Line Contents
 ================================================
      3     10.9 MiB      0.0 MiB   @profile    #修饰器
      4                             def isPrime(n):
      5     10.9 MiB      0.0 MiB       if n == 2:
      6                                     return True
      7     10.9 MiB      0.0 MiB       for i in range(2,int(n**0.5)+2):
      8     10.9 MiB      0.0 MiB           if n%i == 0:
      9     10.9 MiB      0.0 MiB               return False
     10                                 return True
 '''