René's URL Explorer Experiment


Title: ffi: shrink trampoline placement probe window by trivikr · Pull Request #64969 · nodejs/node · GitHub

Open Graph Title: ffi: shrink trampoline placement probe window by trivikr · Pull Request #64969 · nodejs/node

X Title: ffi: shrink trampoline placement probe window by trivikr · Pull Request #64969 · nodejs/node

Description: Node.js JavaScript runtime ✨🐢🚀✨. Contribute to nodejs/node development by creating an account on GitHub.

Open Graph Description: Fixes: #64968 AllocateCodeNear() searched 1024 pages in each direction for a free page next to the native target, one MAP_FIXED_NOREPLACE mmap per candidate. Every probe is expected to fail, so an ...

X Description: Fixes: #64968 AllocateCodeNear() searched 1024 pages in each direction for a free page next to the native target, one MAP_FIXED_NOREPLACE mmap per candidate. Every probe is expected to fail, so an ...

Opengraph URL: https://github.com/nodejs/node/pull/64969

X: @github

direct link

Domain: github.com

react-profiling0
react-import-mapreact,react-dom,react-dom/client,react-dom/profiling,react-is,react-reconciler,react/compiler-runtime,react/jsx-dev-runtime,react/jsx-runtime,scheduler@d5750093facf
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-noncev2:18358335-dcba-5736-fe22-0cf3e76c7b42
current-catalog-service-hashae870bc5e265a340912cde392f23dad3671a0a881730ffdadd82f2f57d81641b
request-idBDEE:3CE69D:170DB9:1DDB48:6AED1626
html-safe-nonce691fada3dc02d6c5ed1e342bfa52de28dcb1a9a2d8a8e1cc8129dfeb9f24f563
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJCREVFOjNDRTY5RDoxNzBEQjk6MUREQjQ4OjZBRUQxNjI2IiwidmlzaXRvcl9pZCI6IjU5NzA4MTIzNzA3NDc3MjUzNTAiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmac553326ed9e9623ecdaae0191d94ea916d28a469c1a3ffa57a488e15f836b8312
hovercard-subject-tagpull_request:4189967253
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/nodejs/node/64969/pull_request_layout
twitter:imagehttps://opengraph.githubassets.com/b950531bbf31f3f02228d34e7dc81b0d248658a2ea58bb0047ad570834a94920/nodejs/node/pull/64969
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/b950531bbf31f3f02228d34e7dc81b0d248658a2ea58bb0047ad570834a94920/nodejs/node/pull/64969
og:image:altFixes: #64968 AllocateCodeNear() searched 1024 pages in each direction for a free page next to the native target, one MAP_FIXED_NOREPLACE mmap per candidate. Every probe is expected to fail, so an ...
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
og:author:usernametrivikr
hostnamegithub.com
expected-hostnamegithub.com
None120085d0bcec1f427e3ab45302c8b95f873d26ad21984dc86d62ab2c10158f41
turbo-cache-controlno-cache
go-importgithub.com/nodejs/node git https://github.com/nodejs/node.git
octolytics-dimension-user_id9950313
octolytics-dimension-user_loginnodejs
octolytics-dimension-repository_id27193779
octolytics-dimension-repository_nwonodejs/node
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forkfalse
octolytics-dimension-repository_network_root_id27193779
octolytics-dimension-repository_network_root_nwonodejs/node
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
releasee12fd03aa775dceadc5a793c3a0791e43ca256bb
ui-targetfull
theme-color#1e2327
color-schemelight dark
react-app-namepull-requests

Links:

Skip to contenthttps://github.com/nodejs/node/pull/64969#start-of-content
https://github.com/
Sign inhttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fnodejs%2Fnode%2Fpull%2F64969
GitHubRepository hosting, code review, and collaborationhttps://github.com/platform
CopilotAI coding agent for tasks, projects, and automated workhttps://github.com/features/copilot
ActionsCI/CD and automationhttps://github.com/features/actions
Code QualityQuality analysis, fixes, and enforcementhttps://github.com/features/code-quality
CodespacesCloud development environmentshttps://github.com/features/codespaces
Code SecurityVulnerability detection and remediationhttps://github.com/security/advanced-security/code-security
Secret ProtectionSecret scanning and leak preventionhttps://github.com/security/advanced-security/secret-protection
All Featureshttps://github.com/features
Documentationhttps://docs.github.com/en
Traininghttps://learn.github.com/skills
Certificationshttps://learn.github.com/credentials
Build with Copilothttps://github.com/features/ai
Customize Copilothttps://docs.github.com/en/copilot/how-tos/copilot-on-github/customize-copilot/customize-copilot-overview
Integrationshttps://github.com/marketplace
Trending reposhttps://github.com/trending
GitHub Sponsorshttps://github.com/open-source/sponsors
Developer articleshttps://github.com/resources/articles
ChangelogYour source for the latest features, improvements, and fixes across GitHub products, all in one place.https://github.blog/changelog/
Enterpriseshttps://github.com/enterprise
Teamhttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
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
See all industrieshttps://github.com/solutions/industry
Why GitHubhttps://github.com/why-github
Customer Storieshttps://github.com/customer-stories
Business insightshttps://github.com/solutions/executive-insights
Trust Centerhttps://github.com/trust-center
GitHub Advanced SecurityEnterprise-grade code securityhttps://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/enterprise/premium-support
Documentationhttps://docs.github.com/en
Resource centerhttps://github.com/resources
Bloghttps://github.blog/
Events & webinarshttps://github.com/resources/events
Community Forumhttps://github.com/orgs/community/discussions
Customer Storieshttps://github.com/customer-stories
Integrationshttps://github.com/marketplace
Customer supporthttps://help.github.com/
Traininghttps://learn.github.com/skills
GitHub Statushttps://www.githubstatus.com/
Abouthttps://github.com/about
Partnershttps://github.com/partners
Changeloghttps://github.blog/changelog/
GitHub UniverseThe event for developers, by developers — talks, workshops, and what’s next for GitHub.https://githubuniverse.com/
Pricinghttps://github.com/pricing
Sign inhttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fnodejs%2Fnode%2Fpull%2F64969
Sign uphttps://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=nodejs%2Fnode
Reloadhttps://github.com/nodejs/node/pull/64969
Reloadhttps://github.com/nodejs/node/pull/64969
Reloadhttps://github.com/nodejs/node/pull/64969
nodejshttps://github.com/nodejs
nodehttps://github.com/nodejs/node
Codehttps://github.com/nodejs/node
Issues655 (655)https://github.com/nodejs/node/issues
Pull requests666 (666)https://github.com/nodejs/node/pulls
Actionshttps://github.com/nodejs/node/actions
Projectshttps://github.com/nodejs/node/projects
Security and qualityhttps://github.com/nodejs/node/security
Insightshttps://github.com/nodejs/node/pulse
https://github.com/nodejs/node
trivikrhttps://github.com/trivikr
nodejs:mainhttps://github.com/nodejs/node/tree/main
trivikr:ffi-allocate-code-near-probehttps://github.com/trivikr/node/tree/ffi-allocate-code-near-probe
Conversationhttps://github.com/nodejs/node/pull/64969
Commits1 (1)https://github.com/nodejs/node/pull/64969/commits
Checkshttps://github.com/nodejs/node/pull/64969/checks
Files changedhttps://github.com/nodejs/node/pull/64969/files
ffi: shrink trampoline placement probe windowhttps://github.com/nodejs/node/pull/64969#top
trivikrhttps://github.com/trivikr
nodejs:mainhttps://github.com/nodejs/node/tree/main
trivikr:ffi-allocate-code-near-probehttps://github.com/trivikr/node/tree/ffi-allocate-code-near-probe
https://github.com/trivikr
trivikrhttps://github.com/trivikr
Aug 2, 2026https://github.com/nodejs/node/pull/64969#issue-5044593545
Please reload this pagehttps://github.com/nodejs/node/pull/64969
#64968https://github.com/nodejs/node/issues/64968
Please reload this pagehttps://github.com/nodejs/node/pull/64969
https://github.com/nodejs-github-bot
nodejs-github-bothttps://github.com/nodejs-github-bot
Aug 2, 2026https://github.com/nodejs/node/pull/64969#issuecomment-5160474140
Please reload this pagehttps://github.com/nodejs/node/pull/64969
https://github.com/nodejs-github-bot
nodejs-github-bothttps://github.com/nodejs-github-bot
c++ https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Ac%2B%2B
needs-ci https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Aneeds-ci
Aug 2, 2026https://github.com/nodejs/node/pull/64969#event-28858772818
https://github.com/trivikr
trivikrhttps://github.com/trivikr
ffi https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Affi
request-ci https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Arequest-ci
Aug 2, 2026https://github.com/nodejs/node/pull/64969#event-28858775311
https://github.com/trivikr
trivikrhttps://github.com/trivikr
Aug 2, 2026 https://github.com/nodejs/node/pull/64969#ref-issue-5044584197
ffi: AllocateCodeNear() probes up to 2048 pages with a failing mmap each, costing ~790 µs per trampoline #64968 https://github.com/nodejs/node/issues/64968
https://github.com/apps/codecov
codecovhttps://github.com/apps/codecov
Aug 2, 2026https://github.com/nodejs/node/pull/64969#issuecomment-5160822147
Please reload this pagehttps://github.com/nodejs/node/pull/64969
Codecovhttps://app.codecov.io/gh/nodejs/node/pull/64969?dropdown=coverage&src=pr&el=h1&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nodejs
11423b1https://app.codecov.io/gh/nodejs/node/commit/11423b10079e505be18ab4ef07226ce05bf413c9?dropdown=coverage&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nodejs
51a55d4https://app.codecov.io/gh/nodejs/node/commit/51a55d4b38f98324bd552026ad4a73e9d7caacc7?dropdown=coverage&el=desc&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nodejs
see 29 files with indirect coverage changeshttps://app.codecov.io/gh/nodejs/node/pull/64969/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nodejs
Test Analyticshttps://docs.codecov.com/docs/test-analytics
JS Bundle Analysishttps://docs.codecov.com/docs/javascript-bundle-analysis
Please reload this pagehttps://github.com/nodejs/node/pull/64969
https://github.com/ShogunPanda
ShogunPandahttps://github.com/ShogunPanda
Aug 3, 2026 https://github.com/nodejs/node/pull/64969#pullrequestreview-4841454623
View reviewed changes https://github.com/nodejs/node/pull/64969/files/51a55d4b38f98324bd552026ad4a73e9d7caacc7
https://github.com/trivikr
trivikrhttps://github.com/trivikr
author ready https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3A%22author%20ready%22
Aug 3, 2026https://github.com/nodejs/node/pull/64969#event-28872035774
https://github.com/apps/github-actions
github-actionshttps://github.com/apps/github-actions
request-ci https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Arequest-ci
Aug 3, 2026https://github.com/nodejs/node/pull/64969#event-28874630712
https://github.com/nodejs-github-bot
nodejs-github-bothttps://github.com/nodejs-github-bot
Aug 3, 2026https://github.com/nodejs/node/pull/64969#issuecomment-5163729878
https://ci.nodejs.org/job/node-test-pull-request/75416/https://ci.nodejs.org/job/node-test-pull-request/75416/
Please reload this pagehttps://github.com/nodejs/node/pull/64969
https://github.com/trivikr
trivikrhttps://github.com/trivikr
commit-queue https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Acommit-queue
Aug 9, 2026https://github.com/nodejs/node/pull/64969#event-29173299899
https://github.com/aduh95
aduh95https://github.com/aduh95
Aug 9, 2026 https://github.com/nodejs/node/pull/64969#ref-pullrequest-5102130421
tools: remove skip logic in commit-queue.sh #65162 https://github.com/nodejs/node/pull/65162
https://github.com/trivikr
ffi: shrink trampoline placement probe windowhttps://github.com/nodejs/node/pull/64969/commits/51a55d4b38f98324bd552026ad4a73e9d7caacc7
51a55d4https://github.com/nodejs/node/pull/64969/commits/51a55d4b38f98324bd552026ad4a73e9d7caacc7
nodejs#64969https://github.com/nodejs/node/pull/64969
nodejs#64968https://github.com/nodejs/node/issues/64968
https://github.com/trivikr
trivikrhttps://github.com/trivikr
force-pushedhttps://github.com/nodejs/node/compare/aa9a0751afb1361b8394c9c02be3ba6de947821f..51a55d4b38f98324bd552026ad4a73e9d7caacc7
aa9a075https://github.com/nodejs/node/commit/aa9a0751afb1361b8394c9c02be3ba6de947821f
51a55d4https://github.com/nodejs/node/commit/51a55d4b38f98324bd552026ad4a73e9d7caacc7
Compare https://github.com/nodejs/node/compare/aa9a0751afb1361b8394c9c02be3ba6de947821f..51a55d4b38f98324bd552026ad4a73e9d7caacc7
August 9, 2026 23:15https://github.com/nodejs/node/pull/64969#event-29194929078
https://github.com/trivikr
trivikrhttps://github.com/trivikr
51a55d4https://github.com/nodejs/node/commit/51a55d4b38f98324bd552026ad4a73e9d7caacc7
Aug 9, 2026https://github.com/nodejs/node/pull/64969#event-29194934181
Please reload this pagehttps://github.com/nodejs/node/pull/64969
https://github.com/trivikr
trivikrhttps://github.com/trivikr
Aug 9, 2026https://github.com/nodejs/node/pull/64969#issuecomment-5234355697
51a55d4https://github.com/nodejs/node/commit/51a55d4b38f98324bd552026ad4a73e9d7caacc7
Please reload this pagehttps://github.com/nodejs/node/pull/64969
https://github.com/trivikr
trivikrhttps://github.com/trivikr
August 9, 2026 23:16https://github.com/nodejs/node/pull/64969#event-29194942603
https://github.com/trivikr
trivikrhttps://github.com/trivikr
commit-queue https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Acommit-queue
Aug 9, 2026https://github.com/nodejs/node/pull/64969#event-29194944642
aduh95https://github.com/aduh95
Aug 13, 2026 https://github.com/nodejs/node/pull/64969#ref-commit-67aaafa
https://github.com/trivikr
https://github.com/aduh95
ffi: shrink trampoline placement probe windowhttps://github.com/nodejs/node/commit/67aaafa9a9d459ad80ccdb0d127c3200afb05d1a
67aaafahttps://github.com/nodejs/node/commit/67aaafa9a9d459ad80ccdb0d127c3200afb05d1a
#64969https://github.com/nodejs/node/pull/64969
#64968https://github.com/nodejs/node/issues/64968
aduh95https://github.com/aduh95
Aug 25, 2026 https://github.com/nodejs/node/pull/64969#ref-commit-8b0bdd9
https://github.com/trivikr
https://github.com/aduh95
ffi: shrink trampoline placement probe windowhttps://github.com/nodejs/node/commit/8b0bdd931ce2321a8bf3c269889a34d4aa5b0a23
8b0bdd9https://github.com/nodejs/node/commit/8b0bdd931ce2321a8bf3c269889a34d4aa5b0a23
#64969https://github.com/nodejs/node/pull/64969
#64968https://github.com/nodejs/node/issues/64968
https://github.com/apps/github-actions
github-actionshttps://github.com/apps/github-actions
Aug 25, 2026 https://github.com/nodejs/node/pull/64969#ref-pullrequest-5251528519
2026-08-26, Version 26.8.0 (Current) #65551 https://github.com/nodejs/node/pull/65551
https://github.com/HoonDongKang
HoonDongKanghttps://github.com/HoonDongKang
Oct 2, 2026 https://github.com/nodejs/node/pull/64969#ref-pullrequest-5672785531
ffi: add getFunction cache-miss benchmark #66456 https://github.com/nodejs/node/pull/66456
nodejs-github-bothttps://github.com/nodejs-github-bot
Oct 20, 2026 https://github.com/nodejs/node/pull/64969#ref-commit-4c14b9f
https://github.com/HoonDongKang
ffi: add getFunction cache-miss benchmarkhttps://github.com/nodejs/node/commit/4c14b9f58a01dec9ae9586a03a3615ea73d02d32
4c14b9fhttps://github.com/nodejs/node/commit/4c14b9f58a01dec9ae9586a03a3615ea73d02d32
#66456https://github.com/nodejs/node/pull/66456
#64969https://github.com/nodejs/node/pull/64969
#64971https://github.com/nodejs/node/pull/64971
https://github.co/hiddenchars
https://github.com/nodejs/node/pull/{{ revealButtonHref }}
Sign up for freehttps://github.com/join?source=comment-repo
Sign in to commenthttps://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Fnodejs%2Fnode%2Fpull%2F64969
https://github.com/ShogunPanda
ShogunPanda https://github.com/ShogunPanda
https://github.com/nodejs/node/pull/64969/files/51a55d4b38f98324bd552026ad4a73e9d7caacc7
Please reload this pagehttps://github.com/nodejs/node/pull/64969
author ready https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3A%22author%20ready%22
c++ https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Ac%2B%2B
ffi https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Affi
needs-ci https://github.com/nodejs/node/issues?q=state%3Aopen%20label%3Aneeds-ci
ffi: AllocateCodeNear() probes up to 2048 pages with a failing mmap each, costing ~790 µs per trampoline https://github.com/nodejs/node/issues/64968
Please reload this pagehttps://github.com/nodejs/node/pull/64969
https://github.com/trivikr
https://github.com/nodejs-github-bot
https://github.com/ShogunPanda
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.