Rendering Core Weekly Update for October 25, 2022

[Stephen Chenney]

We will have a Rendering Core meeting tomorrow. Please consider questions or announcements you might wish to raise.

Oct 25, 2022

Agenda

• Meeting week with the usual update

Upcoming Meetings

• Add any future discussion topics here.

Triage

Team	Untriaged	SLA Misses	Missing Owners
Layout	7	0	0
Style	19	9	0
Editing	10	1	0
Paint	6	1	0
Canvas	13	3	2
DOM	5	0	1

P1 Bugs Exceeding Web Platform SLO

Team	Priority 1 Bugs	Num Unassigned	Priority 1 Bugs older than 20 days
Layout	8	4	0
Style	1	0	0
Editing	3	1	1
Paint	1	1	1
Canvas	13	1	12
DOM	3	1	1

Open, Closed and Fixed

Team	Opened	Closed	Fixed
Layout	35	48	20
Style	30	33	12
Editing	8	6	4
Paint	13	27	10
Canvas	1	1	1
DOM	26	33	8

Total Open

Team	Total Open	Delta	Total Assigned	Delta	New WPT	Run Rate
Layout	1258	-8	267	-15	0	8
Style	946	-1	257	0	2	-1
Editing	1083	3	73	2	0	2
Paint	1428	-12	451	-9	0	-1
Canvas	379	0	193	0	0	2
DOM	1356	-18	545	15	0	4

 

Regression Bugs

Team	Priority 1 Regressions	Num Unassigned	Priority 1 Regressions older than 15 days	External Assignee	Expected Slow Fix
Layout	11	3	8	7	0
Style	1	0	1	0	0
Editing	0	0	0	0	0
Paint	1	0	0	0	0
Canvas	3	0	2	2	0
DOM	6	1	2	3	0

Web Test Fail/Skipped Counts

The table below is derived from the actual test expectations for recent try bot runs: linux-blink-rel 81206, mac-11-blink-rel 7591, win10.20h2-blink-rel 3959. Counts include virtual test suites owned by the team or testing stable functionality.

wpt/editing was added to the counts.

All test failures:

• Linux 3440 up 65

• Mac 3600 up 36

• Win 3321 up 34

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	12	0	2	2	2	0
DOM	174	193	177	0	103	192	104	0
Editing	3	3	3	1	6	6	6	0
Layout	32	39	33	0	8	13	9	0
Paint	160	163	146	1	24	31	27	0
Style/All	1390	1432	1317	33	1103	1104	1104	-2

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:

• 90 new Web tests (including relevant virtual suites)

• 5 Internal

• wpt_internal/css/css-borders/subpixel-border-width-value-recomputed-when-zoom-changes.html

• wpt_internal/css/css-borders/subpixel-border-width-when-zoom-changes.html

• wpt_internal/css/css-borders/subpixel-border-width-when-zoomed.html

• wpt_internal/dom/abort/abort-signal-memory-tests.any.html

• wpt_internal/dom/abort/abort-signal-memory-tests.any.worker.html

• 23 Failing:

• external/wpt/css/css-fonts/font-variant-emoji-1.html

• external/wpt/css/css-fonts/rlh-in-monospace.html

• external/wpt/css/selectors/media/media-playback-state.html

• external/wpt/css/selectors/nth-... (19 tests)

• external/wpt/editing/crashtests/inserthorizontalrule-in-textarea-in-editor-and-undo-on-error-events.html

• 1 Skipped

• external/wpt/css/selectors/media/media-loading-state.html

• Existing tests

• 5 Newly passing

• external/wpt/css/css-grid/subgrid/line-names-005.html

• external/wpt/css/css-grid/subgrid/line-names-006.html

• external/wpt/css/css-images/image-orientation/image-orientation-border-image.html

• fast/forms/week/week-picker-ax.html

• fast/layers/clip-rects-transformed.html

• 36 new failures (but really only 4)

• [Filter Tests] (32 tests due to a Skia roll)

• external/wpt/css/css-color/parsing/color-computed-color-mix-function.html

• external/wpt/scroll-animations/css/scroll-timeline-default-iframe-print.html (+ virtual)

• http/tests/lazyload/attribute.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 56 / 56, Failing/Timeout 0 / 0, Skipped 0 / 0

• css-highlight-inheritance: Regressions 1, Passing 278/ 255, Failing/Timeout 34 / 57, Skipped 11 / 11

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

• Stable steady at 99.27%

• Dev steady at 99.26%

Metrics

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

• Nothing to report.

EngProd (vivianz,weizhong,jonathanjlee,preethim,jiesheng,troebst)

Web Developer Metrics (dgrogan, schenney, foolip)

• Interop 2023 is ready for comments!

• Continued work on the Bug Metrics Dashboard. Will seek feedback shortly.