WICG/js-self-profiling

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Proposal for a programmable JS profiling API for collecting JS profiles from real end-user environments

Stars: 207
Forks: 17
Open beginner issues: 0
Indexed issues: 41

Dominant language: HTML
License: No license data
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 20, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

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41 open issues indexed

Proposal: `profiler.restart()` Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

WICG/js-self-profiling#90 · Opened Jul 21, 2026
Proposal: Introduce a Lazy Activation Mode for JS-Self Profiling API Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

WICG/js-self-profiling#86 · 2 comments · 3 reactions · Opened Dec 10, 2025
Missing tasks in parallel steps in JS Self-Profiling API Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

WICG/js-self-profiling#84 · Opened Sep 9, 2024
Excel Online team also believes COI requirement is not needed for this API. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#83 · 1 comment · 1 reaction · Opened Aug 7, 2024
Using a circular buffer instead of stopping/starting profiling Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#81 · 2 comments · 1 reaction · Opened Mar 1, 2024
The `document-policy: js-profiling` header adds 3% overhead Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#79 · 4 comments · 1 reaction · Opened Sep 20, 2023
Support and feedback from Sentry Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

WICG/js-self-profiling#78 · 3 comments · 14 reactions · Opened Mar 8, 2023
Broken references in JS Self-Profiling API Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

WICG/js-self-profiling#77 · Opened Dec 7, 2022
Deobfuscation of JS-Self-Profiling API is challenging due to API output Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

WICG/js-self-profiling#76 · 2 comments · Opened Aug 29, 2022
Mozilla's perf.html adaptations Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

WICG/js-self-profiling#75 · 1 comment · 3 reactions · Opened May 6, 2022
pprof support Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#74 · 2 reactions · Opened Apr 26, 2022
Adding Parsing & Compilation to Profiler Markers Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#71 · 2 comments · Opened Feb 6, 2022
Provide JSON serialized profiles Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

WICG/js-self-profiling#69 · 2 comments · Opened Jan 28, 2022
Lowering the profiler minimum sampling interval Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

WICG/js-self-profiling#68 · 5 comments · Opened Jan 25, 2022
Having separate bucks for style & layout likely isn't optimal. Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#67 · Opened Jan 18, 2022
sampleInterval of "zero" Open

Difficulty 1/5 Under an hour Newbie friendliness 35/100

WICG/js-self-profiling#66 · Opened Dec 30, 2021
Possibility of a synchronous Profiler.stop for unload scenarios? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#65 · 3 reactions · Opened Dec 30, 2021
Marker & security. Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

WICG/js-self-profiling#61 · 15 comments · Opened Oct 26, 2021
Sampling dict seems to falsely indicate an empty stack Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

WICG/js-self-profiling#59 · 5 comments · Opened Oct 22, 2021
Questions from a web-USER (not a developer.) Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

WICG/js-self-profiling#56 · Opened Oct 11, 2021
Privacy issues in differences between API and Polyfilled Implementation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#54 · 2 comments · Opened Aug 10, 2021
Interactions with the Back-forward cache? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

WICG/js-self-profiling#53 · 2 comments · Opened Aug 9, 2021
Use Infra Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

WICG/js-self-profiling#43 · Opened May 3, 2021
Define component-wise equal Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

WICG/js-self-profiling#42 · Opened May 3, 2021
Feedback on the proposal Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

WICG/js-self-profiling#36 · 1 comment · Opened Jan 18, 2021
What is the motivation for the index-based format? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#35 · 3 comments · Opened Jan 18, 2021
How does document policy work in workers? Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

WICG/js-self-profiling#33 · 10 comments · 1 reaction · Opened Jan 18, 2021
Consider exposing VM state in samples Open

WICG/js-self-profiling#26 · 1 assignee · Opened Nov 12, 2020
Support from Microsoft Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

WICG/js-self-profiling#24 · 1 comment · 2 reactions · Opened Sep 9, 2020
interaction with function implementation hiding proposal Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

WICG/js-self-profiling#23 · 1 reaction · Opened Apr 20, 2020
Support & Feedback From Elastic Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

WICG/js-self-profiling#21 · 3 reactions · Opened Feb 19, 2020
Profiler format should be flexible enough to support recording multiple metric types Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#16 · 2 reactions · Opened Apr 5, 2019
Support for collecting profiles without timestamps Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

WICG/js-self-profiling#15 · 3 reactions · Opened Apr 4, 2019
Support from Boomerang Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#14 · 3 reactions · Opened Feb 25, 2019
Codify common failure modes like truncated stacks Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#12 · Opened Nov 27, 2018
Metadata for "async" callstacks Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

WICG/js-self-profiling#11 · Opened Nov 27, 2018
binary layout + code markers Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#10 · 2 comments · Opened Nov 19, 2018
Support from Dropbox Open

Difficulty 5/5 Over a week Newbie friendliness 5/100

WICG/js-self-profiling#9 · 1 reaction · Opened Nov 16, 2018
What if function calls are optimized out? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

WICG/js-self-profiling#8 · 3 comments · Opened Sep 18, 2018
Additional discussion in mozilla-positions github Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

WICG/js-self-profiling#5 · Opened Jun 6, 2018
Fair sampling with very low sample rates Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

WICG/js-self-profiling#4 · 5 comments · Opened Jun 6, 2018

WICG/js-self-profiling

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