Rendering Core Weekly Update for September 13, 2022

[Stephen Chenney]

Sep 13, 2022

Agenda

• The usual update

• A short word about team pages on the chromium.org site

Upcoming Meetings

• Add any future discussion topics here.

Triage

Team	Untriaged	SLA Misses	Missing Owners
Layout	16	0	1
Style	9	0	0
Editing	23	0	0
Paint	4	1	0
Canvas	6	0	1
DOM	5	2	0

P1 Bugs Exceeding Web Platform SLO

Team	Priority 1 Bugs	Num Unassigned	Priority 1 Bugs older than 30 days
Layout	13	6	4
Style	4	0	0
Editing	4	2	1
Paint	8	2	2
Canvas	15	2	11
DOM	4	0	3

Open, Closed and Fixed

Team	Opened	Closed	Fixed
Layout	24	16	6
Style	22	21	12
Editing	7	4	4
Paint	18	18	7
Canvas	7	10	8
DOM	14	23	10

Total Open

Team	Total Open	Delta	Total Assigned	Delta	New WPT	Run Rate
Layout	1246	13	283	3	1	5
Style	940	3	265	3	0	-1
Editing	1066	5	72	2	0	0
Paint	1452	3	457	7	0	-1
Canvas	371	-3	196	3	0	2
DOM	1326	-9	537	-2	0	0

 

Regression Bugs

Team	Priority 1 Regressions	Num Unassigned	Priority 1 Regressions older than 15 days	External Assignee	Expected Slow Fix
Layout	0	0	0	0	0
Style	1	0	0	0	0
Editing	0	0	0	0	0
Paint	0	0	0	0	0
Canvas	2	0	1	0	0
DOM	3	0	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 78889, mac-11-blink-rel 7159, win10.20h2-blink-rel 3633. 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:

• 148 new Web tests (including relevant virtual suites)

• 33 Internal

• printing/ (11 tests * 3 suites)

• 29 Failing:

• external/wpt/css/css-flexbox/flex-item-transferred-sizes-padding-border-sizing.html

• external/wpt/css/css-flexbox/flex-item-transferred-sizes-padding-content-sizing.html

• external/wpt/css/css-flexbox/intrinsic-size/row-wrap-001.html

• external/wpt/css/css-text-decor/text-decoration-skip-spaces-00[1-4].html (4 tests)

• external/wpt/css/filter-effects/filter-invalid.html

• external/wpt/html/editing/dnd/images/0[1-24].html (16 tests)

• printing/fixedpos-in-multicol.html (+ virtual)

• printing/monolithic-at-page-block-end-horizontal-tb.html (+ virtual)

• virtual/scalefactor200/external/wpt/css/filter-effects/filter-invalid.html

• 0 Skipped

• Existing tests

• 14 Newly passing

• external/wpt/css/css-contain/container-queries/canvas-as-container-004.html

• external/wpt/dom/xslt/transformToFragment.tentative.window.html

• virtual/layout_ng_printing/printing/… (12 tests)

• 20 new failures

• external/wpt/css/css-break/flexbox/flex-container-fragmentation-008.html

• external/wpt/css/css-break/flexbox/single-line-column-flex-fragmentation-029.html

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

• fast/block/float/shrink-to-avoid-float-complexity.html

• fast/dom/Element/scrollTop-scrollLeft-body.html

• paint/invalidation/outline/outline-change-vertical-rl.html

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

• printing/fixed-positioned-overflow-scroll.html (+ virtual)

• printing/multi-page-background.html (+ virtual) (+ virtual)

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

• printing/vertical-rl.html (+ virtual)

• 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

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 274/ 251, Failing/Timeout 34 / 57, Skipped 11 / 11

• layout_ng_printing: Regressions 10, Passing 121 / 130, Failing/Timeout 15 / 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.

• Many alerts but nothing serious at this time.

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

• 
  

Web Developer Metrics (dgrogan, schenney, foolip)

• Staring work on the Landing Review for Container Queries

• CL up for exporting comment metadata for monorail snapshots