core.py

Episode 16: Memory Allocation


Listen Later

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

...more
View all episodesView all episodes
Download on the App Store

core.pyBy Pablo Galindo and Łukasz Langa

  • 5
  • 5
  • 5
  • 5
  • 5

5

16 ratings


More shows like core.py

View all
Software Engineering Radio - the podcast for professional software developers by se-radio@computer.org

Software Engineering Radio - the podcast for professional software developers

272 Listeners

The Changelog: Software Development, Open Source by Changelog Media

The Changelog: Software Development, Open Source

284 Listeners

Talk Python To Me by Michael Kennedy

Talk Python To Me

590 Listeners

Test & Code by Brian Okken

Test & Code

70 Listeners

Soft Skills Engineering by Jamison Dance and Dave Smith

Soft Skills Engineering

269 Listeners

Super Data Science: ML & AI Podcast with Jon Krohn by Jon Krohn

Super Data Science: ML & AI Podcast with Jon Krohn

298 Listeners

Python Bytes by Michael Kennedy and Brian Okken

Python Bytes

215 Listeners

Syntax - Tasty Web Development Treats by Wes Bos & Scott Tolinski - Full Stack JavaScript Web Developers

Syntax - Tasty Web Development Treats

987 Listeners

The Stack Overflow Podcast by The Stack Overflow Podcast

The Stack Overflow Podcast

62 Listeners

The Real Python Podcast by Real Python

The Real Python Podcast

139 Listeners

Last Week in AI by Skynet Today

Last Week in AI

287 Listeners

2.5 Admins by The Late Night Linux Family

2.5 Admins

92 Listeners

Hard Fork by The New York Times

Hard Fork

5,438 Listeners

Oxide and Friends by Oxide Computer Company

Oxide and Friends

47 Listeners

The Pragmatic Engineer by Gergely Orosz

The Pragmatic Engineer

53 Listeners