w3c/user-timing

User Timing

Beginner friendly Everything

Open All

8 open issues indexed

Add entry to the performance entry buffer in `mark()` and `measure()` seems excessive Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

w3c/user-timing#126 · 3 comments · Opened Apr 20, 2026
Extending 'Recommended mark names' to allow user agents to detect media timeouts Open

w3c/user-timing#110 · 2 comments · 1 assignee · Opened Jun 3, 2024
Add a standard track/category field to the spec Open

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

w3c/user-timing#109 · 11 comments · Opened Feb 8, 2024
In workers, mark names can be PerformanceTiming attributes but they cannot be retrieved in measures Open

w3c/user-timing#99 · 3 comments · 1 assignee · Opened Aug 24, 2022
It isn't defined what happens if StructuredSerialize in measure() throws an exception Open

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

w3c/user-timing#91 · 2 comments · Opened Apr 27, 2022
Marking and measuring style computation, layout calculations, etc Open

enhancement

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

w3c/user-timing#88 · 6 comments · Opened Mar 22, 2022
Contextual and GC friendly user timing Open

enhancement triaged

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

w3c/user-timing#86 · 12 comments · Opened Dec 13, 2021
Define best practices for monitoring of single page apps via UT / custom Entries Open

triaged

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

w3c/user-timing#40 · 1 comment · 3 reactions · Opened May 25, 2018

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