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Episode 16: Memory Allocation

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Manage episode 447519281 series 3522009
Content provided by Pablo Galindo and Łukasz Langa, Pablo Galindo, and Łukasz Langa. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Pablo Galindo and Łukasz Langa, Pablo Galindo, and Łukasz Langa or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.

How does Python handle memory? Why does it need to perform custom forms of memory allocation? We talk about all that in this episode. We don't talk about Easter eggs, and we never mention Brandt by name, as promised last time!

## Timestamps

(00:00:00) INTRO

(00:00:22) PART 0: SPORTS NEWS

(00:01:57) PART 1: MEMORY ALLOCATION

(00:03:46) If you write C correctly, it manages memory for you

(00:05:38) malloc and the heap

(00:09:31) High-level allocators

(00:10:48) pymalloc

(00:11:15) 512 is a good number

(00:12:43) Memory domains in pymalloc

(00:15:09) Why is pymalloc faster than just using malloc?

(00:20:16) To free or not to free

(00:26:35) User-facing features of pymalloc

(00:30:40) Łukasz replaced by an LLM Sim... almost

(00:32:58) Debugging help with marked memory

(00:39:24) 8-byte alignment

(00:42:27) cymem

(00:45:08) tracemalloc

(00:49:12) memray

(00:50:47) Coding like an ultravillain

(00:55:22) Complaining about Apple

(01:01:45) PART 2: PR OF THE WEEK

(01:13:46) Pablo's buildbot release status page

(01:18:26) PART 3: WHAT'S GOING ON IN CPYTHON

(01:18:52) PEP 762

(01:22:30) PEP 758

(01:26:10) Performance updates

(01:29:14) Argparse suggests correct spelling

(01:30:13) Fraction.from_number() and Decimal.from_number()

(01:30:39) switched in contextvars

(01:31:42) Better type annotations in pydoc signatures

(01:33:33) Fixes in TaskGroup and _PyFuture ref cycles

(01:34:03) Data race in ZoneInfo

(01:35:53) Testing certificates set to expire far in the future

(01:36:32) InternalDocs

(01:40:22) There are no Easter eggs

(01:40:42) OUTRO

  continue reading

22 episodes

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Episode 16: Memory Allocation

core.py

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Manage episode 447519281 series 3522009
Content provided by Pablo Galindo and Łukasz Langa, Pablo Galindo, and Łukasz Langa. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by Pablo Galindo and Łukasz Langa, Pablo Galindo, and Łukasz Langa or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.

How does Python handle memory? Why does it need to perform custom forms of memory allocation? We talk about all that in this episode. We don't talk about Easter eggs, and we never mention Brandt by name, as promised last time!

## Timestamps

(00:00:00) INTRO

(00:00:22) PART 0: SPORTS NEWS

(00:01:57) PART 1: MEMORY ALLOCATION

(00:03:46) If you write C correctly, it manages memory for you

(00:05:38) malloc and the heap

(00:09:31) High-level allocators

(00:10:48) pymalloc

(00:11:15) 512 is a good number

(00:12:43) Memory domains in pymalloc

(00:15:09) Why is pymalloc faster than just using malloc?

(00:20:16) To free or not to free

(00:26:35) User-facing features of pymalloc

(00:30:40) Łukasz replaced by an LLM Sim... almost

(00:32:58) Debugging help with marked memory

(00:39:24) 8-byte alignment

(00:42:27) cymem

(00:45:08) tracemalloc

(00:49:12) memray

(00:50:47) Coding like an ultravillain

(00:55:22) Complaining about Apple

(01:01:45) PART 2: PR OF THE WEEK

(01:13:46) Pablo's buildbot release status page

(01:18:26) PART 3: WHAT'S GOING ON IN CPYTHON

(01:18:52) PEP 762

(01:22:30) PEP 758

(01:26:10) Performance updates

(01:29:14) Argparse suggests correct spelling

(01:30:13) Fraction.from_number() and Decimal.from_number()

(01:30:39) switched in contextvars

(01:31:42) Better type annotations in pydoc signatures

(01:33:33) Fixes in TaskGroup and _PyFuture ref cycles

(01:34:03) Data race in ZoneInfo

(01:35:53) Testing certificates set to expire far in the future

(01:36:32) InternalDocs

(01:40:22) There are no Easter eggs

(01:40:42) OUTRO

  continue reading

22 episodes

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