Rendering Core Weekly Update for Sept 20, 2022

[Stephen Chenney]

P1 Regressions are ticking up. Please take a look to see if nudges are required etc.

Otherwise all is well.

Stephen.

Sep 20, 2022

Agenda

• The usual update

• No meeting week

Upcoming Meetings

• Add any future discussion topics here.

Triage

Team	Untriaged	SLA Misses	Missing Owners
Layout	14	0	2
Style	9	0	0
Editing	12	0	1
Paint	18	2	0
Canvas	5	0	1
DOM	0	0	0

P1 Bugs Exceeding Web Platform SLO

Team	Priority 1 Bugs	Num Unassigned	Priority 1 Bugs older than 30 days
Layout	8	0	4
Style	1	0	0
Editing	4	2	1
Paint	5	2	2
Canvas	15	1	14
DOM	5	2	5

Open, Closed and Fixed

Team	Opened	Closed	Fixed
Layout	42	29	17
Style	22	29	17
Editing	10	9	7
Paint	31	33	16
Canvas	5	11	9
DOM	13	14	6

Total Open

Team	Total Open	Delta	Total Assigned	Delta	New WPT	Run Rate
Layout	1260	14	284	1	1	7
Style	940	0	261	-4	0	-1
Editing	1068	2	72	0	0	0
Paint	1452	0	447	-10	1	0
Canvas	365	-6	190	-6	0	2
DOM	1331	5	538	1	0	0

 

Regression Bugs

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

Web Test Fail/Skipped Counts

The table below is derived from the actual test expectations for recent try bot runs: linux-blink-rel 79279, mac-11-blink-rel 7312, win10.20h2-blink-rel 3769. Counts include virtual test suites owned by the team or testing stable functionality.

All test failures:

• Linux 3277 up 40

• Mac 3492 up 42

• Win 3242 up 43

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	169	181	165	1	111	199	112	0
Editing	16	16	16	16	49	49	49	0
Layout	32	39	33	1	8	13	9	0
Paint	167	175	163	6	25	33	29	0
Style/All	1405	1489	1371	18	1152	1153	1153	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:

• 204 new Web tests (including relevant virtual suites)

• 40 Internal

• custom-elements/ (35 tests)

• http/tests/custom-elements/form-submission-file.html

• virtual/css-highlight-inheritance/wpt_internal/css/css-pseudo/spelling-error-004-crash.html

• wpt_internal/css/css-pseudo/spelling-error-004-crash.html

• wpt_internal/css/css-values/lh-with-zoom.html

• wpt_internal/custom-elements/CustomElementRegistry-constructor.html

• 8 Failing:

• external/wpt/custom-elements/form-associated/ElementInternals-target-element-is-held-strongly.html

• external/wpt/custom-elements/throw-on-dynamic-markup-insertion-counter-construct-xml-parser.xhtml

• external/wpt/custom-elements/throw-on-dynamic-markup-insertion-counter-reactions-xml-parser.xhtml

• external/wpt/html/editing/dnd/canvas/00[1,2,3,5,7].html (5 tests)

• 1 Skipped

• external/wpt/custom-elements/pseudo-class-defined-print.html

• Existing tests

• 23 Newly passing

• printing/page-orientation-propagated.html (+ 2 virtual)

• virtual/layout_ng_printing/printing/… (4 more tests)

• external/wpt/css/css-conditional/at-supports-font-format-001.html

• external/wpt/css/css-conditional/at-supports-font-tech-001.html

• external/wpt/css/css-grid/abspos/ (6 tests)

• external/wpt/css/css-values/lh-unit-001.html

• external/wpt/css/css-values/lh-unit-002.html

• paint/invalidation/svg/relative-sized-document-scrollbars.svg

• svg/custom/mixed-percent-size-zoom.svg

• svg/custom/percent-size-zoom.svg

• svg/text/caret-in-svg-text.xhtml

• svg/zoom/page/zoom-coords-viewattr-01-b.svg

• svg/zoom/page/zoom-foreign-content.svg

• 8 new failures

• external/wpt/css/css-grid/alignment/grid-baseline-004.html

• external/wpt/css/css-images/gradient/gradient-eval-003.html

• external/wpt/css/css-variables/css-variable-change-style-001.html

• external/wpt/dom/nodes/NodeList-static-length-getter-tampered-1.html

• external/wpt/dom/nodes/NodeList-static-length-getter-tampered-2.html

• external/wpt/dom/nodes/NodeList-static-length-getter-tampered-3.html

• printing/page-break-avoid.html (+ virtual)

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: Virtual suite is now skipped

• controls-refresh-hc: Regressions 0, Passing 55 / 55, Failing/Timeout 0 / 0, Skipped 0 / 0

• css-highlight-inheritance: Regressions 1, Passing 276/ 251, Failing/Timeout 34 / 57, Skipped 11 / 11

• layout_ng_printing: Regressions 5, Passing 126 / 130, Failing/Timeout 10 / 7, Skipped 1 / 0

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

• Stable steady at 99.27%

• Dev steady at 99.27%

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)

• CL approved for exporting comment metadata for monorail snapshots, verifying correctness before it lands