René's URL Explorer Experiment


Title: GH-135904: Improve the JIT's performance on macOS by brandtbucher · Pull Request #136528 · python/cpython · GitHub

Open Graph Title: GH-135904: Improve the JIT's performance on macOS by brandtbucher · Pull Request #136528 · python/cpython

X Title: GH-135904: Improve the JIT's performance on macOS by brandtbucher · Pull Request #136528 · python/cpython

Description: This PR makes a couple of minor tweaks to the JIT that result in 1.7% faster performance on macOS overall: Our AArch64 code doesn't need to be 8-byte aligned, just the data. Currently, we guarante...

Open Graph Description: This PR makes a couple of minor tweaks to the JIT that result in 1.7% faster performance on macOS overall: Our AArch64 code doesn't need to be 8-byte aligned, just the data. Currently, we guar...

X Description: This PR makes a couple of minor tweaks to the JIT that result in 1.7% faster performance on macOS overall: Our AArch64 code doesn't need to be 8-byte aligned, just the data. Currently, we ...

Opengraph URL: https://github.com/python/cpython/pull/136528

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-noncev2:4510e73b-d72b-0a96-cf9e-171b3bfa5331
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idC0FC:9124A:2801239:3436A48:696B6093
html-safe-nonce484c831221bb4aa6117f83e7eed35acf2d08e6963fdac03d669e7601e1ee54e2
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJDMEZDOjkxMjRBOjI4MDEyMzk6MzQzNkE0ODo2OTZCNjA5MyIsInZpc2l0b3JfaWQiOiI1NTIxNTg0NDE1MzM1NzM1NDQzIiwicmVnaW9uX2VkZ2UiOiJpYWQiLCJyZWdpb25fcmVuZGVyIjoiaWFkIn0=
visitor-hmac988ff472b8457474e19cb77cdad6cd5a00ad72ebd395a45ef022a2a07a407216
hovercard-subject-tagpull_request:2657620233
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/136528/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/e2db0b85b99466b1b7e62b287c2a5b76a956418e8ff14fdf02a85897fcdc318c/python/cpython/pull/136528
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/e2db0b85b99466b1b7e62b287c2a5b76a956418e8ff14fdf02a85897fcdc318c/python/cpython/pull/136528
og:image:altThis PR makes a couple of minor tweaks to the JIT that result in 1.7% faster performance on macOS overall: Our AArch64 code doesn't need to be 8-byte aligned, just the data. Currently, we guar...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernamebrandtbucher
hostnamegithub.com
expected-hostnamegithub.com
None5f99f7c1d70f01da5b93e5ca90303359738944d8ab470e396496262c66e60b8d
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
release82560a55c6b2054555076f46e683151ee28a19bc
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/python/cpython/pull/136528#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fpython%2Fcpython%2Fpull%2F136528
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%2F136528
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/136528
Reloadhttps://github.com/python/cpython/pull/136528
Reloadhttps://github.com/python/cpython/pull/136528
python https://github.com/python
cpythonhttps://github.com/python/cpython
Please reload this pagehttps://github.com/python/cpython/pull/136528
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/136528
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/136528#issue-comment-box
brandtbucherhttps://github.com/brandtbucher
python:mainhttps://github.com/python/cpython/tree/main
brandtbucher:jit-targetshttps://github.com/brandtbucher/cpython/tree/jit-targets
GH-135904: Improve the JIT's performance on macOS https://github.com/python/cpython/pull/136528#top
brandtbucherhttps://github.com/brandtbucher
python:mainhttps://github.com/python/cpython/tree/main
brandtbucher:jit-targetshttps://github.com/brandtbucher/cpython/tree/jit-targets
Conversation 2 https://github.com/python/cpython/pull/136528
Commits 8 https://github.com/python/cpython/pull/136528/commits
Checks 64 https://github.com/python/cpython/pull/136528/checks
Files changed 6 https://github.com/python/cpython/pull/136528/files
https://github.co/hiddenchars
https://github.com/python/cpython/pull/{{ revealButtonHref }}
https://github.com/brandtbucher
brandtbucherhttps://github.com/brandtbucher
Jul 11, 2025https://github.com/python/cpython/pull/136528#issue-3221219527
Please reload this pagehttps://github.com/python/cpython/pull/136528
Optimize the JIT's low-level assembly control flow #135904https://github.com/python/cpython/issues/135904
Please reload this pagehttps://github.com/python/cpython/pull/136528
brandtbucherhttps://github.com/brandtbucher
July 7, 2025 15:40https://github.com/python/cpython/pull/136528#commits-pushed-aa2b0df
https://github.com/brandtbucher
Make jump targets local instead of externhttps://github.com/python/cpython/pull/136528/commits/aa2b0df10a3d2881cb2891b24dde6f3782e4492d
aa2b0dfhttps://github.com/python/cpython/pull/136528/commits/aa2b0df10a3d2881cb2891b24dde6f3782e4492d
https://github.com/brandtbucher
Add __attribute__((visibility("hidden")))https://github.com/python/cpython/pull/136528/commits/3a6c20d62c619501b9aee3ae59a95f8624bd6b53
3a6c20dhttps://github.com/python/cpython/pull/136528/commits/3a6c20d62c619501b9aee3ae59a95f8624bd6b53
https://github.com/brandtbucher
Rework AArch64 alignmenthttps://github.com/python/cpython/pull/136528/commits/3ff9ee7ecaf2d794e72174fe7e5183b048f37858
3ff9ee7https://github.com/python/cpython/pull/136528/commits/3ff9ee7ecaf2d794e72174fe7e5183b048f37858
https://github.com/brandtbucher
fixuphttps://github.com/python/cpython/pull/136528/commits/d66cc8507d097984f3b7476633e3bb0cb7d8cf23
d66cc85https://github.com/python/cpython/pull/136528/commits/d66cc8507d097984f3b7476633e3bb0cb7d8cf23
https://github.com/brandtbucher
fixuphttps://github.com/python/cpython/pull/136528/commits/1f6bdfc9eb9b844739b65c6ca51b8cfa4f5d4943
1f6bdfchttps://github.com/python/cpython/pull/136528/commits/1f6bdfc9eb9b844739b65c6ca51b8cfa4f5d4943
https://github.com/brandtbucher
Detect ";" commentshttps://github.com/python/cpython/pull/136528/commits/cff0f0946fc0c41f96ecb2021634816662d923a1
cff0f09https://github.com/python/cpython/pull/136528/commits/cff0f0946fc0c41f96ecb2021634816662d923a1
https://github.com/brandtbucher
Handle symbol and label prefixes in a principled wayhttps://github.com/python/cpython/pull/136528/commits/997a858eed3067dac0e09593d51ebc15e7c95c76
997a858https://github.com/python/cpython/pull/136528/commits/997a858eed3067dac0e09593d51ebc15e7c95c76
https://github.com/brandtbucher
brandtbucherhttps://github.com/brandtbucher
diegorussohttps://github.com/diegorusso
July 11, 2025 02:01https://github.com/python/cpython/pull/136528#event-18576776148
https://github.com/brandtbucher
brandtbucherhttps://github.com/brandtbucher
Jul 11, 2025https://github.com/python/cpython/pull/136528#event-18576776276
https://github.com/brandtbucher
brandtbucherhttps://github.com/brandtbucher
savannahostrowskihttps://github.com/savannahostrowski
code ownerhttps://github.com/python/cpython/blob/49365bd110a254a6a304d2f880482bfeb2e4490d/.github/CODEOWNERS#L29
July 11, 2025 02:01https://github.com/python/cpython/pull/136528#event-18576777194
https://github.com/brandtbucher
brandtbucherhttps://github.com/brandtbucher
performance https://github.com/python/cpython/issues?q=state%3Aopen%20label%3Aperformance
skip news https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22skip%20news%22
interpreter-core https://github.com/python/cpython/issues?q=state%3Aopen%20label%3Ainterpreter-core
topic-JIT https://github.com/python/cpython/issues?q=state%3Aopen%20label%3Atopic-JIT
Jul 11, 2025https://github.com/python/cpython/pull/136528#event-18576777386
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting core review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20core%20review%22
Jul 11, 2025https://github.com/python/cpython/pull/136528#event-18576778740
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
Jul 11, 2025 https://github.com/python/cpython/pull/136528#ref-issue-3173607397
Optimize the JIT's low-level assembly control flow #135904 https://github.com/python/cpython/issues/135904
https://github.com/brandtbucher
Fix mypyhttps://github.com/python/cpython/pull/136528/commits/9544d5da0a5e9610737d68c9c15625506fd98007
9544d5dhttps://github.com/python/cpython/pull/136528/commits/9544d5da0a5e9610737d68c9c15625506fd98007
https://github.com/Fidget-Spinner
Fidget-Spinnerhttps://github.com/Fidget-Spinner
Jul 11, 2025https://github.com/python/cpython/pull/136528#issuecomment-3060185743
Please reload this pagehttps://github.com/python/cpython/pull/136528
https://github.com/diegorusso
diegorussohttps://github.com/diegorusso
Jul 14, 2025 https://github.com/python/cpython/pull/136528#pullrequestreview-3017120477
View reviewed changes https://github.com/python/cpython/pull/136528/files/9544d5da0a5e9610737d68c9c15625506fd98007
diegorussohttps://github.com/diegorusso
https://github.com/python/cpython/pull/136528#pullrequestreview-3017120477
Learn morehttps://docs.github.com/articles/managing-disruptive-comments/#hiding-a-comment
Please reload this pagehttps://github.com/python/cpython/pull/136528
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting merge https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20merge%22
awaiting core review https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20core%20review%22
Jul 14, 2025https://github.com/python/cpython/pull/136528#event-18622203396
https://github.com/brandtbucher
brandtbucherhttps://github.com/brandtbucher
3d8c38fhttps://github.com/python/cpython/commit/3d8c38f6db0fea7845aafb92fe6bc795b536a367
Jul 14, 2025https://github.com/python/cpython/pull/136528#event-18622315097
Please reload this pagehttps://github.com/python/cpython/pull/136528
https://github.com/apps/bedevere-app
bedevere-apphttps://github.com/apps/bedevere-app
awaiting merge https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22awaiting%20merge%22
Jul 14, 2025https://github.com/python/cpython/pull/136528#event-18622316022
taegyunkimhttps://github.com/taegyunkim
Aug 4, 2025 https://github.com/python/cpython/pull/136528#ref-commit-d645168
https://github.com/brandtbucher
https://github.com/taegyunkim
pythonGH-135904https://github.com/python/cpython/issues/135904
: Improve the JIT's performance on macOS (https://github.com/taegyunkim/cpython/commit/d6451688e434e5b39a70c53861ef70224b8d5615
pythonGH-136528https://github.com/python/cpython/pull/136528
d645168https://github.com/taegyunkim/cpython/commit/d6451688e434e5b39a70c53861ef70224b8d5615
https://github.com/python/cpython/pull/136528
Agent-Hellboyhttps://github.com/Agent-Hellboy
Aug 19, 2025 https://github.com/python/cpython/pull/136528#ref-commit-bfbbdc9
https://github.com/brandtbucher
https://github.com/Agent-Hellboy
pythonGH-135904https://github.com/python/cpython/issues/135904
: Improve the JIT's performance on macOS (https://github.com/Agent-Hellboy/cpython/commit/bfbbdc911af506ed92cc24221a449724cb8cb3aa
pythonGH-136528https://github.com/python/cpython/pull/136528
bfbbdc9https://github.com/Agent-Hellboy/cpython/commit/bfbbdc911af506ed92cc24221a449724cb8cb3aa
https://github.com/python/cpython/pull/136528
https://github.com/savannahostrowski
savannahostrowskihttps://github.com/savannahostrowski
Oct 12, 2025 https://github.com/python/cpython/pull/136528#ref-pullrequest-3506650070
JIT: Fix compiler warning from visibility attribute in typedef #139981 https://github.com/python/cpython/pull/139981
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%2F136528
https://github.com/diegorusso
diegorusso https://github.com/diegorusso
https://github.com/python/cpython/pull/136528/files/9544d5da0a5e9610737d68c9c15625506fd98007
https://github.com/savannahostrowski
savannahostrowski https://github.com/savannahostrowski
https://github.com/brandtbucher
brandtbucher https://github.com/brandtbucher
interpreter-core https://github.com/python/cpython/issues?q=state%3Aopen%20label%3Ainterpreter-core
performance https://github.com/python/cpython/issues?q=state%3Aopen%20label%3Aperformance
skip news https://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22skip%20news%22
topic-JIT https://github.com/python/cpython/issues?q=state%3Aopen%20label%3Atopic-JIT
Please reload this pagehttps://github.com/python/cpython/pull/136528
https://github.com/brandtbucher
https://github.com/Fidget-Spinner
https://github.com/diegorusso
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.