How to test memory usage for different parts of the project in Python?

Question

I try to compare different algorithms' performance in one script. Without using profiler, are there any methods we could use to estimate the memory usage at the end of each algorithm implementation?

def main():
    test_case = open('text.txt', 'r')
    for line in test_case.readlines(): #input different datasets
       #do something in Alg1
       #evaluate memory usage in Alg1
       #do something in Alg2
       #evaluate memory usage in Alg2

Ozgur Vatansever · Accepted Answer · 2015-02-18 06:08:30Z

1

Assuming you are using Linux or Mac OS X;

You can use the standard library module resource to get the total memory consumption as bytes for the calling process:

>>> import resource
>>> resource.getrusage(resource.RUSAGE_SELF).ru_maxrss
19968000

answered Feb 18, 2015 at 6:08

Ozgur Vatansever

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1 Comment

Peterxwl Over a year ago

Do you mean I put your second line at #evaluate memory usage in Alg each time?

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