Rendering Core Weekly Update for November 29, 2022

[Stephen Chenney]

I hope everyone had a nice break, or quiet week, whichever applies to you.

We have a Rendering Core Meeting tomorrow.

There is one action item from the notes: There are 2 Sub-grid WPT needing triage.

Nov 29, 2022

Agenda

• Meeting this week for the usual update

• Add any agenda items you wish to discuss

Upcoming Meetings

• Add any future discussion topics here.

Triage

Team	Untriaged	SLA Misses	Missing Owners
Layout	11	2	0
Style	3	0	0
Editing	16	0	0
Paint	6	0	0
Canvas	1	0	1
DOM	8	1	1

P1 Bugs Exceeding Web Platform SLO

Big jumps because P1 regressions and security issues are now reported. The links have also been updated to include P0 bugs.

Team	Priority 1 Bugs	Num Unassigned	Priority 1 Bugs older than 20 days
Layout	8	9	11
Style	4	2	0
Editing	8	5	2
Paint	8	4	2
Canvas	7	0	5
DOM	19	4	8

Open, Closed and Fixed

Team	Opened	Closed	Fixed
Layout	30	29	10
Style	16	16	7
Editing	16	11	2
Paint	18	18	12
Canvas	4	9	3
DOM	18	18	4

Total Open

Team	Total Open	Delta	Total Assigned	Delta	New WPT	Run Rate
Layout	1272	-3	246	-4	3	2
Style	964	1	259	-3	0	0
Editing	1098	7	77	-1	0	3
Paint	1451	3	454	-3	0	-1
Canvas	361	-4	189	0	0	0
DOM	1349	-2	528	0	1	2

 

Regression Bugs

Team	Priority 1 Regressions	Num Unassigned	Priority 1 Regressions older than 15 days	External Assignee	Expected Slow Fix
Layout	5	3	5	4	0
Style	2	2	0	0	0
Editing	3	2	1	0	0
Paint	0	0	0	0	0
Canvas	1	0	1	1	0
DOM	19	4	8	7	0

Web Test Fail/Skipped Counts

All test failures:

• Linux-blink-rel build 83018:  5625 web test failures, up 1204 (no idea why)

• Mac-11-blink-rel build 7846: 4603 web test failures, up 4

• win10.20h2-blink-rel build 4154: 4712 web test failures, up 29

Delta in the table below is the rounded average of the platforms.

	Failing				Skipped
Team	Linux	Mac	Win	Delta	Linux	Mac	Win	Delta
Canvas	10	12	11	0	2	2	2	0
DOM	188	199	191	0	65	144	67	0
Editing	2	2	3	-1	6	6	6	0
Layout	32	36	34	1	2	6	2	0
Paint	149	153	145	-1	10	11	11	0
Style/All	1426	1486	1372	7	932	932	932	0

Web Test Regressions and Status Changes

When triaging newly added tests, be sure to add necessary information to crbug.com and update the metadata at wpt.fyi.

Test Status Changes, maybe incorrect due to Windows failed test shard:

• 166 new Web tests (including relevant virtual suites)

• 7 Internal

• compositing/overflow/local-attachment-border-radius-styles-with-composited-child.html (+ virtual)

• fast/inline/initial-letter-inline-kerning.html

• printing/abspos-inside-overflow-clip-001.html (+ virtual)

• printing/abspos-inside-overflow-clip-002.html (+ virtual)

• 22 Failing:

• external/wpt/css/css-grid/subgrid/grid-gap-010.html (Needs Triage)

• external/wpt/css/css-grid/subgrid/grid-gap-011.html (Needs Triage)

• external/wpt/css/css-writing-modes/forms/ (20 tests)

• 26 Skipped

• external/wpt/css/css-view-transitions/ (20 tests)

• external/wpt/css/css-writing-modes/forms/manual/… (6 tests)

• Existing tests

• 54 Newly passing

• Mostly filters tests re-enabled after Skia change

• external/wpt/css/css-color/tagged-images-004.html

• external/wpt/css/css-multicol/multicol-list-item-005.html

• external/wpt/css/css-text-decor/text-decoration-line-spelling-error-color-001.optional.html

• external/wpt/css/css-transforms/transform-inline-001.html

• external/wpt/editing/run/insertlinebreak.html

• external/wpt/html/semantics/embedded-content/media-elements/src_object_blob.html

• fast/events/platform-wheelevent-paging-xy-in-scrolling-page.html

• fast/events/scrollbar-double-click.html

• fast/events/selection-autoscroll-borderbelt.html

• fast/events/touch/scroll-without-mouse-lacks-mousemove-events.html

• fast/forms/calendar-picker/month-picker-appearance-step.html

• fast/forms/calendar-picker/month-picker-appearance.html

• fast/forms/month/month-picker-appearance-zoom150.html

• 11 new failures

• external/wpt/css/css-values/calc-in-media-queries-with-mixed-units.html

• external/wpt/css/selectors/focus-visible-002.html

• external/wpt/css/selectors/focus-visible-018-2.html

• external/wpt/editing/run/caret-navigation-around-line-break.html

• external/wpt/fullscreen/api/document-fullscreen-enabled-cross-origin.sub.html

• external/wpt/html/dom/idlharness.worker.html

• external/wpt/html/semantics/forms/the-input-element/selection-pointer.html

• external/wpt/html/semantics/forms/the-input-element/show-picker-user-gesture.html

• external/wpt/html/semantics/forms/the-selectmenu-element/selectmenu-parts-structure.tentative.html

• fast/dom/shadow/import-rule-in-shadow-tree-needs-document-style-recalc.html

• fast/events/event-hit-testing-fallback-to-iframe.html

Launch Test Status

Regressions are how many fail in the virtual suite while passing in the default.

Passing compares the virtual / default passing test counts.

Failing/Timeout compares virtual / default failing or timeout results

Skipped compares skipped count for virtual / default

• backface-visibility-interop: Need to update tracking for linux only

• controls-refresh-hc: Regressions 0, Passing 57 / 57, Failing/Timeout 0 / 0, Skipped 0 / 0

• css-highlight-inheritance: Regressions 1, Passing 283/ 259, Failing/Timeout 34 / 58, Skipped 11 / 11

• Percentage of NG Blocks over time, Windows 50th percentile, Stable and Dev

• Stable steady at 99.27%

• Dev has overflowed 100%, suggesting a bug in computing the ratio

Metrics

Reminder to add any performance wins to go/wp-perfy.

• Nothing new

EngProd (vivianz,weizhong,jonathanjlee,jiesheng,nihardamar)

• 
  

Web Developer Metrics (dgrogan, schenney, foolip)

• Stack Overflow analysis has revealed the most viewed posts containing Chrome bugs. Autofill autocomplete=off not working in Chrome has 2 million views.

• Spec Issue tracking underway