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Bits and bytes of Python memory management


Is it true that Python is not returning memory back to OS? What happens with variables which are no longer needed? How important is a garbage collector? How to trace and profile memory usage?

Let's find out answers to these and maybe some more questions.

Talk overview:

Introduction: Why do I need to care about memory management in Python? Objects in Python – what are they? Memory management: How memory is being allocated at start/while running – blocks/pools/arenas? How is memory being freed – reference counting/garbage collector? Extras - small integer’s identity, sys.intern, sys.getsizeof, lists/dicts dynamic allocations. How to find cycles in variables referencing? Tools for memory management: Overview of available tools for managing memory. How and why Instagram disabled/re-enabled garbage collector?


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