Rendering Core Weekly Update for October 11, 2022

[Stephen Chenney]

We're meeting tomorrow for an update. Maybe we'll grade OKRs or maybe not.

Oct 11, 2022

Agenda

• Quick Update at the meeting

• OKR Grading, maybe?

Upcoming Meetings

• Add any future discussion topics here.

Triage

Team	Untriaged	SLA Misses	Missing Owners
Layout	4	0	1
Style	20	0	0
Editing	38	0	0
Paint	32	0	1
Canvas	18	3	0
DOM	15	0	0

P1 Bugs Exceeding Web Platform SLO

Team	Priority 1 Bugs	Num Unassigned	Priority 1 Bugs older than 30 days
Layout	8	2	2
Style	2	1	0
Editing	1	0	0
Paint	3	1	1
Canvas	13	2	12
DOM	7	3	3

Open, Closed and Fixed

Team	Opened	Closed	Fixed
Layout	48	60	38
Style	28	26	16
Editing	17	11	9
Paint	45	41	23
Canvas	13	4	2
DOM	30	21	11

Total Open

Team	Total Open	Delta	Total Assigned	Delta	New WPT	Run Rate
Layout	1277	0	285	1	1	9
Style	947	2	254	-8	0	-1
Editing	1081	7	71	1	1	1
Paint	1461	2	461	1	0	0
Canvas	384	10	192	2	0	2
DOM	1347	13	532	1	0	2

 

Regression Bugs

Team	Priority 1 Regressions	Num Unassigned	Priority 1 Regressions older than 15 days	External Assignee	Expected Slow Fix
Layout	12	3	5	8	0
Style	1	0	0	0	0
Editing	0	0	0	0	0
Paint	6	0	0	3	0
Canvas	2	0	1	1	0
DOM	2	0	2	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 80390, mac-11-blink-rel 7485, win10.20h2-blink-rel 3887. Counts include virtual test suites owned by the team or testing stable functionality.

wpt/editing was added to the counts.

All test failures:

• Linux 3263 up 67

• Mac 3462 up 55

• Win 3205 up 50

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	172	189	173	-4	103	191	104	0
Editing	2	2	2	0	6	6	6	0
Layout	32	39	33	0	8	13	9	0
Paint	155	165	148	-2	23	31	27	0
Style/All	1344	1411	1294	17	1105	1106	1106	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:

• 78 new Web tests (including relevant virtual suites)

• 4 Internal

• printing/fixedpos-with-inline-block.html (+ virtual/threaded)

• printing/page-overflow-inside-overflow-hidden.html (+ virtual/threaded)

• 7 Failing:

• external/wpt/css/css-flexbox/intrinsic-size/col-wrap-013.html

• external/wpt/css/css-flexbox/intrinsic-size/col-wrap-014.html

• external/wpt/css/css-flexbox/intrinsic-size/col-wrap-019.html

• external/wpt/css/css-images/gradient/css-color-4-colors-default-to-oklab-gradient.html

• external/wpt/css/css-images/gradient/oklab-gradient.html

• external/wpt/css/css-images/gradient/srgb-linear-gradient.html

• external/wpt/css/css-images/gradient/xyz-gradient.html

• No Skipped

• Existing tests

• 12 Newly passing

• external/wpt/css/css-flexbox/flexbox-align-self-baseline-horiz-006.xhtml

• external/wpt/css/css-grid/alignment/grid-container-baseline-001.html

• external/wpt/css/css-grid/alignment/grid-row-axis-self-baseline-synthesized-004.html

• external/wpt/css/css-grid/alignment/grid-self-baseline-not-applied-if-sizing-cyclic-dependency-003.html

• external/wpt/css/css-grid/subgrid/baseline-001.html

• external/wpt/dom/events/Event-dispatch-click.html

• external/wpt/dom/events/non-cancelable-when-passive/… (3 tests)

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

• printing/width-overflow.html

• 31 new failures

• css3/filters/effect-reference-hidpi.html

• external/wpt/css/css-text/text-transform/text-transform-capitalize-*.html (14 tests)

• external/wpt/css/css-transforms/[backgrounds on root] (7 tests + virtual)

• virtual/scalefactor200/css3/filters/effect-reference-hidpi.html

• virtual/threaded/external/wpt/scroll-animations/css/view-timeline-inset-animation.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 55 / 55, Failing/Timeout 0 / 0, Skipped 0 / 0

• css-highlight-inheritance: Regressions 1, Passing 277/ 254, 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.

• Much noise due to fix for FCP reporting

• Style performance improved enough to trigger alerts

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

• 
  

Web Developer Metrics (dgrogan, schenney, foolip)

• Q4 Planning

• Star count metrics now exclude the stars on new bugs (a Blink>Scroll bug picked up several new stars last week)

• Learned about the various data sources for Stack Overflow analysis (there are at least 4 of them)