|
| 1 | +import time |
| 2 | +import sys |
| 3 | + |
| 4 | + |
| 5 | +def performance(func): |
| 6 | + """ |
| 7 | + This function is a decorator that measures the performance of a function. |
| 8 | + This decorator function has a nested function called wrapper. |
| 9 | + It measures the time ,memory usage, and how many called of the this function. |
| 10 | + |
| 11 | + :param func: function of the decorator |
| 12 | + :type func: function |
| 13 | + :return: wrapper of the decorator |
| 14 | + :rtype: function |
| 15 | + """ |
| 16 | + if not hasattr(performance, 'counter'): |
| 17 | + setattr(performance, 'counter', 0) |
| 18 | + |
| 19 | + if not hasattr(performance, 'total_time'): |
| 20 | + setattr(performance, 'total_time', 0.0) |
| 21 | + |
| 22 | + if not hasattr(performance, 'total_mem'): |
| 23 | + setattr(performance, 'total_mem', 0) |
| 24 | + |
| 25 | + def wrapper(*args, **kwargs): |
| 26 | + """ |
| 27 | + This function is a wrapper that measures the performance of the decorated function. |
| 28 | + It measures the execution time, memory usage, and the number of calls to the function. |
| 29 | +
|
| 30 | + :param *args: Positional arguments to pass to the decorated function. |
| 31 | + :param **kwargs: Keyword arguments to pass to the decorated function. |
| 32 | + :return: The result of the decorated function. |
| 33 | + """ |
| 34 | + start_time = time.time() |
| 35 | + |
| 36 | + #source https://www.geeksforgeeks.org/find-out-how-much-memory-is-being-used-by-an-object-in-python/ |
| 37 | + memory_usage=sys.getsizeof(func(*args, **kwargs)) |
| 38 | + end_time = time.time() |
| 39 | + |
| 40 | + |
| 41 | + setattr(performance, 'counter', getattr(performance, 'counter') + 1) |
| 42 | + setattr(performance, 'total_time', getattr(performance, 'total_time') + (end_time - start_time)) |
| 43 | + setattr(performance, 'total_mem', getattr(performance, 'total_mem') + memory_usage) |
| 44 | + |
| 45 | + return func(*args, **kwargs) |
| 46 | + |
| 47 | + return wrapper |
| 48 | + |
| 49 | + |
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