Rendering Core Weekly Update for July 26, 2022

[Stephen Chenney]

No meeting this week. See you all next week.

One test needs triage but I'll deal with it.

Stephen.

Jul 26, 2022

Agenda

• The usual update.

• No meeting week.

Upcoming Meetings

• A new “Developer Satisfaction based on Bugs” metric

• Got an idea? Let’s discuss it!

Triage

Team	Untriaged	SLA Misses	Missing Owners
Layout	30	0	0
Style	13	0	0
Editing	7	0	0
Paint	17	1	2
Canvas	12	7	0
DOM	20	1	0

P1 Bugs Exceeding Web Platform SLO

Team	Priority 1 Bugs	Num Unassigned	Priority 1 Bugs older than 30 days
Layout	19	12	2
Style	3	1	0
Editing	6	4	2
Paint	11	3	2
Canvas	12	2	9
DOM	6	0	1

Open, Closed and Fixed

Team	Opened	Closed	Fixed
Layout	46	26	19
Style	18	25	9
Editing	7	13	11
Paint	28	32	18
Canvas	3	0	0
DOM	10	13	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	1179	16	252	1	1	-4
Style	944	-8	264	2	2	-2
Editing	1058	-7	76	-6	0	0
Paint	1455	3	447	0	0	-3
Canvas	362	4	193	4	0	1
DOM	1318	-9	535	3	0	2

 

Regression Bugs

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

Web Test Fail/Skipped Counts

The table below is derived from the actual test expectations for recent try bot runs: linux-blink-rel 76244, mac-11-blink-rel 6752, win10.20h2-blink-rel 3313. Counts include virtual test suites owned by the team or testing stable functionality.

All test failures:

• Linux 3429 down 3

• Mac 3725 down 2

• Win 3395 down 4

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	91	92	86	1	93	98	93	0
Editing	0	0	0	0	49	49	49	0
Layout	19	21	19	6	2	8	3	0
Paint	159	167	151	-2	20	28	26	0
Style/All	1420	1496	1383	1	1123	1124	1124	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:

• 62 new Web tests (including relevant virtual suites)

• 7 Internal

• wpt_internal/css/css-anchor-position/... (7 tests)

• 2 Failing:

• external/wpt/css/css-images/gradient/gradient-eval-004.html

• external/wpt/css/cssom/caretPositionFromPoint-with-transformation.html (Needs Triage)

• None Skipped

• Existing tests

• 4 Newly passing

• external/wpt/css/css-tables/collapsed-scroll-overflow.html

• http/tests/images/image-decode-in-frame.html

• svg/W3C-SVG-1.1/pservers-grad-05-b.svg

• svg/wicd/test-scalable-background-image2.xhtml

• 9 new failures

• external/wpt/css/css-position/sticky/position-sticky-fixed-ancestor-iframe.html

• external/wpt/css/css-position/sticky/position-sticky-fixed-ancestor.html

• external/wpt/dom/events/non-cancelable-when-passive/non-passive-mousewheel-event-listener-on-window.html

• fragmentation/break-in-second-table-section.html

• fragmentation/break-in-tbody-after-caption.html

• fragmentation/single-cells-multiple-tables-no-repeating-thead.html

• fragmentation/table-row-dimensions-break-freely.html

• fragmentation/table-row-dimensions-with-thead.html

• fragmentation/table-row-page-break-collapsed-border.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: Regressions 4, Passing 2145 / 2145, Failing/Timeout 20 / 20, Skipped 4 / 4

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

• css-highlight-inheritance: Regressions 1, Passing 264 / 241, Failing/Timeout 37 / 60, Skipped 11 / 11

• css-modules: Regressions 0, Passing 14 / 14, Failing/Timeout 0 / 0, Skipped 0 / 0

• layout_ng_printing: Regressions 19, Passing 104 / 124, Failing/Timeout 21 / 2, Skipped 1 / 0

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

• Stable steady at 99.27%

• Dev down then up to 99.26%

Metrics

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

• Nothing to update.