Rendering Core Weekly Update for August 23, 2022

[Stephen Chenney]

Hi Folks,

No meeting this week.

As of this moment there are a lot of untriaged P1 issues. Please get to those at your earliest convenience.

Aug 23, 2022

Agenda

• No meeting week. The usual email update.

Upcoming Meetings

• August 30: [Pdr] Discussion on meeting metrics time range and options for adjusting bug data reporting

Triage

Team	Untriaged	SLA Misses	Missing Owners
Layout	39	1	0
Style	10	0	0
Editing	27	0	0
Paint	8	0	0
Canvas	9	2	0
DOM	35	2	0

P1 Bugs Exceeding Web Platform SLO

Team	Priority 1 Bugs	Num Unassigned	Priority 1 Bugs older than 30 days
Layout	26	12	2
Style	2	0	0
Editing	9	5	2
Paint	5	5	0
Canvas	14	0	11
DOM	9	3	3

Open, Closed and Fixed

Team	Opened	Closed	Fixed
Layout	64	57	44
Style	18	33	12
Editing	11	16	13
Paint	23	24	8
Canvas	6	4	4
DOM	30	22	9

Total Open

Please take some time to look at your old inactive bugs and give them up for someone else. If you haven’t worked on it for a long time it can’t be super important.

Team	Total Open	Delta	Total Assigned	Delta	New WPT	Run Rate
Layout	1188	11	260	4	1	0
Style	927	-10	252	-6	0	-1
Editing	1051	-3	72	-1	0	-1
Paint	1438	-1	439	-1	1	-2
Canvas	361	4	186	3	0	2
DOM	1320	18	531	3	0	0

 

Regression Bugs

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

Web Test Fail/Skipped Counts

The table below is derived from the actual test expectations for recent try bot runs: linux-blink-rel 77884, mac-11-blink-rel 7001, win10.20h2-blink-rel 3556. Counts include virtual test suites owned by the team or testing stable functionality.

All test failures:

• Linux 3385 down 21

• Mac 3622 down 32

• Win 3341 down 18

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

	Failing				Skipped
Team	Linux	Mac	Win	Delta	Linux	Mac	Win	Delta
Canvas	13	15	15	0	2	2	2	0
DOM	164	179	160	0	111	199	112	10
Editing	0	0	0	0	49	49	49	0
Layout	33	40	34	-1	8	13	9	0
Paint	174	187	165	0	26	34	32	-4
Style/All	1372	1458	1338	-2	1153	1154	1154	31

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:

• 73 new Web tests (including relevant virtual suites)

• 6 Internal

• svg/foreignObject/dynamic-height.html

• wpt_internal/css/css-anchor-position/… (5 tests)

• 
  

• 4 Failing:

• external/wpt/css/css-pseudo/highlight-currentcolor-painting-text-shadow-00[1,2].html (2 tests + virtual)

• 44 Skipped - Almost all related to printing

• external/wpt/css/css-break/block-001-wm-vlr-print.html

• external/wpt/css/css-break/block-001-wm-vrl-print.html

• external/wpt/css/css-break/block-002-wm-vlr-print.html

• external/wpt/css/css-break/block-002-wm-vrl-print.html

• external/wpt/css/css-break/break-nested-float-in-table-001-print.html

• external/wpt/css/css-break/float-with-large-margin-bottom-cross-page-001-print.html

• external/wpt/css/css-break/float-with-large-margin-bottom-cross-page-002-print.html

• external/wpt/css/css-break/ink-overflow-001-print.html

• external/wpt/css/css-break/overflowed-abs-pos-with-percentage-height-print.html

• external/wpt/css/css-break/overflowing-block-print.html

• external/wpt/css/css-flexbox/break-nested-float-in-flex-item-001-print.html

• external/wpt/css/css-flexbox/break-nested-float-in-flex-item-002-print.html

• external/wpt/css/css-fonts/downloadable-font-in-iframe-print.html

• external/wpt/css/css-fonts/downloadable-font-print.html

• external/wpt/css/css-multicol/column-balancing-paged-001-print.html

• external/wpt/css/css-position/position-fixed-overflow-print.html

• external/wpt/css/css-position/position-fixed-video-controls-print.html

• external/wpt/css/css-tables/tfoot-crash-print.html

• external/wpt/css/css-values/viewport-units-001-print.html

• external/wpt/css/printing/… (6 tests)

• external/wpt/html/rendering/non-replaced-elements/tables/ (3 tests)

• external/wpt/html/rendering/replaced-elements/images/revoked-blob-print.html

• external/wpt/html/rendering/the-details-element/details-page-break-... (4 tests)

• external/wpt/html/rendering/widgets/input-date-baseline-print.html

• external/wpt/html/semantics/embedded-content/the-img-element/image-srcdoc-relative-uri-print.html

• external/wpt/scroll-animations/css/at-scroll-timeline-... (3 tests + virtual)

• external/wpt/svg/layout/svg-use-symbol-width-print.html

• external/wpt/svg/painting/reftests/mask-print.svg

• external/wpt/svg/print/svg-use-page-break-crash-print.html

• Existing tests

• 16 Newly passing

• external/wpt/css/css-align/baseline-rules/grid-item-input-type-number.html

• external/wpt/css/css-align/baseline-rules/grid-item-input-type-text.html

• external/wpt/css/css-content/quotes-030.html

• external/wpt/css/css-pseudo/highlight-currentcolor-painting-properties-00[1,2].html (2 tests + virtual)

• fragmentation/single-line-cells-multiple-tables-repeating-thead-with-border-spacing-at-top-of-row.html

• http/tests/lazyload/… (7 tests)

• virtual/css-highlight-inheritance/external/wpt/css/css-pseudo/highlight-currentcolor-root-implicit-default-001.html

• No new failures

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: Regressions 3, Passing 2145 / 2145, Failing/Timeout 22 / 22, Skipped 4 / 4

• 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 25, Passing 98 / 124, Failing/Timeout 27 / 2, Skipped 1 / 0

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

• Stable steady at 99.27%

• Dev is aligned with Stable now at 99.27%

Metrics

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

• One day of missing data generated many UKM alerts.

• A few outstanding issues, with ongoing fallout from the sub-frame prepost FCP fix, and a change to CC reporting of picture layers..

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

• Updates biweekly.

Web Developer Metrics (dgrogan, schenney, foolip)

• Iterating on the Bug Metrics Dashboard

• Interop 2023 Planning