Practice Monitoring Memory: Sys And Gc Modules (3) - Chapter 9: Memory Management and Performance Optimization in Python

Practice: Monitoring Memory: sys and gc Modules

Lesson 3Memory Management and Performance Optimization in Python

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8 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What function in the sys module can help you get the memory size of an object?
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Think of 'size' in the function name.
Question 2.
What is the main purpose of the gc module?
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Consider memory cleanup processes.
3Question 3.
What does the sys.getsizeof() function return?
- The number of references to an object
- The total memory used by the Python interpreter
- The memory size in bytes of an object
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Focus on what 'size' implies.
4Question 4.
True or False: The gc module can be used to manually trigger garbage collection.
- True
- False
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Think about how you control cleaning up unused objects.
Question 5.
Design a small program that creates several data structures, measures their memory usage, modifies them, and then calculate the memory before and after calling gc.collect(). Discuss your findings.
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Focus on the relationship between object modifications and memory management.
Question 6.
Create a cyclic reference scenario where two objects reference each other. Use gc to demonstrate how they can be collected when no external references exist.
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Investigate how Python's garbage collector handles these circular dependencies.

4 more questions in this section. Enroll free to practise them all.