GV

GeezerVison

The World Wide Web, restored to 800 pixels of glory.

Home|About|Gaming cabinet|Archives|How it works|Starter sites

On this site

  • Sign in
  • ActionsCI/CD and automation
  • CodespacesCloud development environments
  • All Features
  • Documentation
  • Training
  • Certifications
  • Build with Copilot
  • Customize Copilot
  • Integrations
  • Trending repos
  • GitHub Sponsors
  • Developer articles
  • Enterprises

This view

  • Original page
  • New address

GeezerVison is showing github.com — gh-139038: Credit more people for JIT in 3.15 by Fidget-Spinner · Pull Request #148359 · python/cpython

Conversation

@Fidget-Spinner

@Fidget-Spinner Fidget-Spinner commented Apr 10, 2026 •
edited by github-actions Bot
Loading

Uh oh!

There was an error while loading. Please reload this page.

Copy link
Copy Markdown
Member

cc @kumaraditya303 @NekoAsakura @cocolato @Sacul0457

@NekoAsakura please let me know what name you would prefer. Thank you!

  • Issue: JIT Planning for 3.15 and 3.16 #139038

📚 Documentation preview 📚: https://cpython-previews--148359.org.readthedocs.build/

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
hugovk reacted with hooray emoji
All reactions
  • 🎉 1 reaction
@Fidget-Spinner
Credit more people for JIT in 3.15
eea70f4
@bedevere-app bedevere-app Bot added the awaiting core review label Apr 10, 2026
@Fidget-Spinner
Fidget-Spinner requested a review from AA-Turner as a code owner April 10, 2026 18:33
@bedevere-app bedevere-app Bot added docs Documentation in the Doc dir skip news labels Apr 10, 2026
@github-project-automation github-project-automation Bot added this to Docs PRs Apr 10, 2026
@github-project-automation github-project-automation Bot moved this to Todo in Docs PRs Apr 10, 2026
@bedevere-app bedevere-app Bot mentioned this pull request Apr 10, 2026
JIT Planning for 3.15 and 3.16 #139038
Open
4 of 19 tasks
savannahostrowski
savannahostrowski approved these changes Apr 10, 2026
View reviewed changes

@savannahostrowski savannahostrowski left a comment

Copy link
Copy Markdown
Member

There was a problem hiding this comment.

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Pending preferred name inclusion, of course! But this is awesome!

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
Fidget-Spinner and NekoAsakura reacted with heart emoji
All reactions
  • ❤️ 2 reactions
@bedevere-app bedevere-app Bot added awaiting merge and removed awaiting core review labels Apr 10, 2026
@NekoAsakura

NekoAsakura commented Apr 10, 2026

Copy link
Copy Markdown
Member

It's Zhongtian Zheng. Cheers ❤️
Fidget-Spinner, sharktide, and savannahostrowski reacted with heart emoji
All reactions
  • ❤️ 3 reactions

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
StanFromIreland
StanFromIreland reviewed Apr 10, 2026
View reviewed changes
Comment thread Doc/whatsnew/3.15.rst Resolved

Uh oh!

There was an error while loading. Please reload this page.
StanFromIreland
StanFromIreland reviewed Apr 10, 2026
View reviewed changes
Comment thread Doc/whatsnew/3.15.rst Resolved

Uh oh!

There was an error while loading. Please reload this page.
@Fidget-Spinner
Address review, use name
3528336
sharktide
sharktide reviewed Apr 10, 2026
View reviewed changes

@sharktide sharktide left a comment •
edited
Loading

Uh oh!

There was an error while loading. Please reload this page.

Copy link
Copy Markdown
Contributor

There was a problem hiding this comment.

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I left a couple of suggestions that make the docs more explicit and clear. They may not be needed, so I’ll leave this up to you whichever version you like better

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
All reactions
Comment thread Doc/whatsnew/3.15.rst
experience lower memory usage for generated machine code and more efficient
machine code versus the old JIT.

machine code versus 3.14.

@sharktide sharktide Apr 10, 2026

Copy link
Copy Markdown
Contributor

There was a problem hiding this comment.

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
machine code versus 3.14.
machine code versus the machine code generated by the 3.14 JIT compiler.

Same here

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
All reactions

@Fidget-Spinner Fidget-Spinner Apr 10, 2026

Copy link
Copy Markdown
Member Author

There was a problem hiding this comment.

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I think this is already implied. It would also be dishonest of us to compare to something else, so I hope people think the same.

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
All reactions
Comment thread Doc/whatsnew/3.15.rst
(Contributed by Ken Jin, Donghee Na, Zheao Li, Hai Zhu, Savannah Ostrowski,
Reiden Ong, Noam Cohen, Tomas Roun, PuQing, Cajetan Rodrigues, and Sacul in :gh:`134584`.)

The JIT optimizer now supports significantly more operations than in 3.14.

@sharktide sharktide Apr 10, 2026

Copy link
Copy Markdown
Contributor

There was a problem hiding this comment.

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
The JIT optimizer now supports significantly more operations than in 3.14.
The JIT optimizer now supports significantly more operations than the JIT optimizer in 3.14

Small suggestion for clarity

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
All reactions
Comment thread Doc/whatsnew/3.15.rst Outdated
(Contributed by Ken Jin and Savannah Ostrowski in :gh:`132732`.)

The JIT avoids :term:`reference count`\ s where possible. This generally
:term:`reference count`\ s are avoided where safe to do so. This generally

@sharktide sharktide Apr 10, 2026

Copy link
Copy Markdown
Contributor

There was a problem hiding this comment.

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
:term:`reference count`\ s are avoided where safe to do so. This generally
:term:`reference count`\ s are avoided whenever it is safe to do so. This generally

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
All reactions

@Fidget-Spinner Fidget-Spinner Apr 10, 2026

Copy link
Copy Markdown
Member Author

There was a problem hiding this comment.

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Thank you.

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
All reactions
@Fidget-Spinner

Fidget-Spinner commented Apr 10, 2026

Copy link
Copy Markdown
Member Author

Thanks for the review @StanFromIreland
StanFromIreland reacted with heart emoji
All reactions
  • ❤️ 1 reaction

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
StanFromIreland
StanFromIreland reviewed Apr 10, 2026
View reviewed changes
Comment thread Doc/whatsnew/3.15.rst Resolved

Uh oh!

There was an error while loading. Please reload this page.
@Fidget-Spinner
review round 2
8bd4049
@Fidget-Spinner
Fidget-Spinner merged commit c4d9512 into python:main Apr 10, 2026
30 checks passed

Uh oh!

There was an error while loading. Please reload this page.
@github-project-automation github-project-automation Bot moved this from Todo to Done in Docs PRs Apr 10, 2026
@bedevere-app bedevere-app Bot removed the awaiting merge label Apr 10, 2026
@Fidget-Spinner

Fidget-Spinner commented Apr 10, 2026

Copy link
Copy Markdown
Member Author

JFYI: CPython web docs are rebuilt roughly every 5 mins now. So watch out for your names on https://docs.python.org/dev/whatsnew/3.15.html#upgraded-jit-compiler !
cocolato and Sacul0457 reacted with thumbs up emoji
All reactions
  • 👍 2 reactions

Sorry, something went wrong.

Uh oh!

There was an error while loading. Please reload this page.
@Fidget-Spinner
Fidget-Spinner deleted the credit-jit-people branch April 10, 2026 19:03
ljfp pushed a commit to ljfp/cpython that referenced this pull request Apr 25, 2026
@Fidget-Spinner @ljfp
pythongh-139038: Credit more people for JIT in 3.15 (pythonGH-148359)
ca8437c
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@StanFromIreland StanFromIreland StanFromIreland left review comments
@savannahostrowski savannahostrowski savannahostrowski approved these changes
@AA-Turner AA-Turner Awaiting requested review from AA-Turner AA-Turner is a code owner
+1 more reviewer
@sharktide sharktide sharktide left review comments
Reviewers whose approvals may not affect merge requirements

Uh oh!

There was an error while loading. Please reload this page.

Assignees

No one assigned

Labels

docs Documentation in the Doc dir skip news

Projects

Docs PRs
Status: Done

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

Uh oh!

There was an error while loading. Please reload this page.

5 participants

@Fidget-Spinner @NekoAsakura @savannahostrowski @StanFromIreland @sharktide
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
You are visitor 01402503 — GeezerVison does not store the pages you look up.
Best viewed with Netscape Navigator 4.7 or Internet Explorer 6 at 800×600. No cookies required.