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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://podcastplayer.com/legal.
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The Megahertz

1:42:23
 
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Manage episode 494136835 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://podcastplayer.com/legal.

Python 3.14? That's old news. Let's talk about the first big feature of Python 3.15 -- a built-in sampling profiler for Linux, macOS, and Windows. We also cover improvements in perf support, discuss memory.python.org, and as usual, recent changes in the codebase.

## Timestamps

(00:00:00) INTRO

(00:02:43) PART 1: THE SAMPLING PROFILER

(00:05:07) Built-in profile is bad, long live cProfile

(00:10:54) Out-of-process profiling

(00:12:18) Shortcuts Compromise Accuracy, Leading Eventually to Numerous Errors

(00:16:07) Selfish Łukasz vs benevolent Pablo

(00:23:11) How does a sampling profiler even work?

(00:30:42) One meeellion huuurtzzz

(00:32:40) Free threading makes it extra spicy

(00:41:26) AsyncIO makes it even spicier

(00:49:49) You made this? I made this

(00:54:06) What if the profiled process changes during sampling?

(00:57:33) Coming in October 2026

(01:04:30) PART 2: PR OF THE WEEEEEEK

(01:14:14) memory.python.org launched

(01:23:15) PART 3: WHAT'S GOING ON IN CPYTHON

(01:26:45) Performance updates

(01:30:24) Features & Curiosities

(01:41:45) OUTRO

  continue reading

24 episodes

Artwork

The Megahertz

core.py

20 subscribers

published

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Manage episode 494136835 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://podcastplayer.com/legal.

Python 3.14? That's old news. Let's talk about the first big feature of Python 3.15 -- a built-in sampling profiler for Linux, macOS, and Windows. We also cover improvements in perf support, discuss memory.python.org, and as usual, recent changes in the codebase.

## Timestamps

(00:00:00) INTRO

(00:02:43) PART 1: THE SAMPLING PROFILER

(00:05:07) Built-in profile is bad, long live cProfile

(00:10:54) Out-of-process profiling

(00:12:18) Shortcuts Compromise Accuracy, Leading Eventually to Numerous Errors

(00:16:07) Selfish Łukasz vs benevolent Pablo

(00:23:11) How does a sampling profiler even work?

(00:30:42) One meeellion huuurtzzz

(00:32:40) Free threading makes it extra spicy

(00:41:26) AsyncIO makes it even spicier

(00:49:49) You made this? I made this

(00:54:06) What if the profiled process changes during sampling?

(00:57:33) Coming in October 2026

(01:04:30) PART 2: PR OF THE WEEEEEEK

(01:14:14) memory.python.org launched

(01:23:15) PART 3: WHAT'S GOING ON IN CPYTHON

(01:26:45) Performance updates

(01:30:24) Features & Curiosities

(01:41:45) OUTRO

  continue reading

24 episodes

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