René's URL Explorer Experiment


Title: [3.14] GH-139951: Fix major GC performance regression (GH-140262) by miss-islington · Pull Request #140423 · python/cpython · GitHub

Open Graph Title: [3.14] GH-139951: Fix major GC performance regression (GH-140262) by miss-islington · Pull Request #140423 · python/cpython

X Title: [3.14] GH-139951: Fix major GC performance regression (GH-140262) by miss-islington · Pull Request #140423 · python/cpython

Description: Count number of actually tracked objects, instead of trackable objects. This ensures that untracking tuples has the desired effect of reducing GC overhead Do not track most untrackable tuples dur...

Open Graph Description: Count number of actually tracked objects, instead of trackable objects. This ensures that untracking tuples has the desired effect of reducing GC overhead Do not track most untrackable tuples dur...

X Description: Count number of actually tracked objects, instead of trackable objects. This ensures that untracking tuples has the desired effect of reducing GC overhead Do not track most untrackable tuples dur...

Mail addresses
mark@hotpy.org

Opengraph URL: https://github.com/python/cpython/pull/140423

X: @github

direct link

Domain: github.com

route-pattern/_view_fragments/voltron/pull_requests/show/:user_id/:repository/:id/pull_request_layout(.:format)
route-controllervoltron_pull_requests_fragments
route-actionpull_request_layout
fetch-noncev2:e8ba6dd7-543c-6bb0-bc0b-e0637f60c2b2
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idA290:E9CA7:4C944:685FB:696A4408
html-safe-noncebb0c7b2b0b9b9b81bae256c2ed12b86d2473729dd7b767dde30140894be40fab
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJBMjkwOkU5Q0E3OjRDOTQ0OjY4NUZCOjY5NkE0NDA4IiwidmlzaXRvcl9pZCI6IjYxMDI2NTE0NTk5MzQ1MDM5NDQiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmac12abc72c5763521aa1555e1393abb9f12191f2f99a33525cfe00f7725a82f166
hovercard-subject-tagpull_request:2933625563
github-keyboard-shortcutsrepository,pull-request-list,pull-request-conversation,pull-request-files-changed,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///voltron/pull_requests_fragments/pull_request_layout
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/_view_fragments/voltron/pull_requests/show/python/cpython/140423/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/432a99a11a3f2c98f8242d7e44ad40f1af90e7934a919371728c822ba0d12081/python/cpython/pull/140423
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/432a99a11a3f2c98f8242d7e44ad40f1af90e7934a919371728c822ba0d12081/python/cpython/pull/140423
og:image:altCount number of actually tracked objects, instead of trackable objects. This ensures that untracking tuples has the desired effect of reducing GC overhead Do not track most untrackable tuples dur...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamemiss-islington
hostnamegithub.com
expected-hostnamegithub.com
None3f871c8e07f0ae1886fa8dac284166d28b09ad5bada6476fc10b674e489788ef
turbo-cache-controlno-preview
go-importgithub.com/python/cpython git https://github.com/python/cpython.git
octolytics-dimension-user_id1525981
octolytics-dimension-user_loginpython
octolytics-dimension-repository_id81598961
octolytics-dimension-repository_nwopython/cpython
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id81598961
octolytics-dimension-repository_network_root_nwopython/cpython
turbo-body-classeslogged-out env-production page-responsive
disable-turbofalse
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release63c426b30d262aba269ef14c40e3c817b384cd61
ui-targetcanary-2
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/cpython/pull/140423#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F140423
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub SparkBuild and deploy intelligent appshttps://github.com/features/spark
GitHub ModelsManage and compare promptshttps://github.com/features/models
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
GitHub SponsorsFund open source developershttps://github.com/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/accelerator
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F140423
Sign up https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fvoltron%2Fpull_requests_fragments%2Fpull_request_layout&source=header-repo&source_repo=python%2Fcpython
Reloadhttps://github.com/python/cpython/pull/140423
Reloadhttps://github.com/python/cpython/pull/140423
Reloadhttps://github.com/python/cpython/pull/140423
python https://github.com/python
cpythonhttps://github.com/python/cpython
Please reload this pagehttps://github.com/python/cpython/pull/140423
Notifications https://github.com/login?return_to=%2Fpython%2Fcpython
Fork 33.9k https://github.com/login?return_to=%2Fpython%2Fcpython
Star 71.1k https://github.com/login?return_to=%2Fpython%2Fcpython
Code https://github.com/python/cpython
Issues 5k+ https://github.com/python/cpython/issues
Pull requests 2.1k https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects 31 https://github.com/python/cpython/projects
Security Uh oh! There was an error while loading. Please reload this page. https://github.com/python/cpython/security
Please reload this pagehttps://github.com/python/cpython/pull/140423
Insights https://github.com/python/cpython/pulse
Code https://github.com/python/cpython
Issues https://github.com/python/cpython/issues
Pull requests https://github.com/python/cpython/pulls
Actions https://github.com/python/cpython/actions
Projects https://github.com/python/cpython/projects
Security https://github.com/python/cpython/security
Insights https://github.com/python/cpython/pulse
Sign up for GitHub https://github.com/signup?return_to=%2Fpython%2Fcpython%2Fissues%2Fnew%2Fchoose
terms of servicehttps://docs.github.com/terms
privacy statementhttps://docs.github.com/privacy
Sign inhttps://github.com/login?return_to=%2Fpython%2Fcpython%2Fissues%2Fnew%2Fchoose
Jump to bottomhttps://github.com/python/cpython/pull/140423#issue-comment-box
miss-islingtonhttps://github.com/miss-islington
python:3.14https://github.com/python/cpython/tree/3.14
miss-islington:backport-0c01090-3.14https://github.com/miss-islington/cpython/tree/backport-0c01090-3.14
[3.14] GH-139951: Fix major GC performance regression (GH-140262) https://github.com/python/cpython/pull/140423#top
miss-islingtonhttps://github.com/miss-islington
python:3.14https://github.com/python/cpython/tree/3.14
miss-islington:backport-0c01090-3.14https://github.com/miss-islington/cpython/tree/backport-0c01090-3.14
Conversation 4 https://github.com/python/cpython/pull/140423
Commits 1 https://github.com/python/cpython/pull/140423/commits
Checks 43 https://github.com/python/cpython/pull/140423/checks
Files changed https://github.com/python/cpython/pull/140423/files
Please reload this pagehttps://github.com/python/cpython/pull/140423
https://github.co/hiddenchars
https://github.com/python/cpython/pull/{{ revealButtonHref }}
https://github.com/miss-islington
miss-islingtonhttps://github.com/miss-islington
Oct 21, 2025https://github.com/python/cpython/pull/140423#issue-3536810467
Please reload this pagehttps://github.com/python/cpython/pull/140423
0c01090https://github.com/python/cpython/commit/0c01090ad957de4625f504ce4f29df0a05d09fba
Potentially serious regression in garbage collector performance in Python 3.14 #139951https://github.com/python/cpython/issues/139951
Please reload this pagehttps://github.com/python/cpython/pull/140423
https://github.com/markshannon
https://github.com/miss-islington
pythonGH-139951https://github.com/python/cpython/issues/139951
: Fix major GC performance regression (https://github.com/python/cpython/pull/140423/commits/f778f01264caecd3cfe03458ef863fa65bf4c539
pythonGH-140262https://github.com/python/cpython/pull/140262
)https://github.com/python/cpython/pull/140423/commits/f778f01264caecd3cfe03458ef863fa65bf4c539
f778f01https://github.com/python/cpython/pull/140423/commits/f778f01264caecd3cfe03458ef863fa65bf4c539
0c01090https://github.com/miss-islington/cpython/commit/0c01090ad957de4625f504ce4f29df0a05d09fba
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
Oct 21, 2025 https://github.com/python/cpython/pull/140423#ref-issue-3505571273
Potentially serious regression in garbage collector performance in Python 3.14 #139951 https://github.com/python/cpython/issues/139951
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
Oct 21, 2025https://github.com/python/cpython/pull/140423#event-20406554472
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
Oct 21, 2025 https://github.com/python/cpython/pull/140423#ref-pullrequest-3526854650
GH-139951: Fix major GC performance regression #140262 https://github.com/python/cpython/pull/140262
https://github.com/sergey-miryanov
sergey-miryanovhttps://github.com/sergey-miryanov
Oct 21, 2025https://github.com/python/cpython/pull/140423#issuecomment-3429657138
Please reload this pagehttps://github.com/python/cpython/pull/140423
Please reload this pagehttps://github.com/python/cpython/pull/140423
https://github.com/efimov-mikhail
efimov-mikhailhttps://github.com/efimov-mikhail
Oct 22, 2025https://github.com/python/cpython/pull/140423#issuecomment-3431126552
@colesburyhttps://github.com/colesbury
Please reload this pagehttps://github.com/python/cpython/pull/140423
https://github.com/colesbury
colesburyhttps://github.com/colesbury
Oct 22, 2025https://github.com/python/cpython/pull/140423#issuecomment-3432788471
Please reload this pagehttps://github.com/python/cpython/pull/140423
https://github.com/colesbury
colesburyhttps://github.com/colesbury
Oct 22, 2025 https://github.com/python/cpython/pull/140423#ref-pullrequest-3540122708
[3.14] GH-139951: Fix major GC performance regression. Backport of GH-140262 #140447 https://github.com/python/cpython/pull/140447
https://github.com/markshannon
markshannonhttps://github.com/markshannon
Oct 23, 2025https://github.com/python/cpython/pull/140423#issuecomment-3437326810
#140447https://github.com/python/cpython/pull/140447
Please reload this pagehttps://github.com/python/cpython/pull/140423
https://github.com/markshannon
markshannonhttps://github.com/markshannon
Oct 23, 2025https://github.com/python/cpython/pull/140423#event-20455898679
https://github.com/miss-islington
miss-islingtonhttps://github.com/miss-islington
January 2, 2026 16:39https://github.com/python/cpython/pull/140423#event-21829393346
Sign up for freehttps://github.com/join?source=comment-repo
Sign in to commenthttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F140423
awaiting review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20review%22
Please reload this pagehttps://github.com/python/cpython/pull/140423
https://github.com/miss-islington
https://github.com/sergey-miryanov
https://github.com/efimov-mikhail
https://github.com/colesbury
https://github.com/markshannon
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width


URLs of crawlers that visited me.