Bug 191041 – [ MacOS ] Layout Test performance-api/performance-observer-callback-after-gc.html is flaky

• Status: RESOLVED
• Resolution: FIXED
• Component: Tools / Tests

[Truitt Savell]

The following layout test is flaky on MacOS

performance-api/performance-observer-callback-after-gc.html

Probable cause:

Unknown, test has been flakey one Mac platforms for the whole history. 

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=performance-api%2Fperformance-observer-callback-after-gc.html

Diff:
--- /Volumes/Data/slave/mojave-release-tests-wk1/build/layout-test-results/performance-api/performance-observer-callback-after-gc-expected.txt
+++ /Volumes/Data/slave/mojave-release-tests-wk1/build/layout-test-results/performance-api/performance-observer-callback-after-gc-actual.txt
@@ -3,9 +3,8 @@
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
-PerformanceObserver callback fired: 1 entries
+PerformanceObserver callback fired: 3 entries
 PASS mark1
-PerformanceObserver callback fired: 2 entries
 PASS mark2
 PASS mark3
 PASS successfullyParsed is true

[Truitt Savell]

Repro:

run-webkit-tests --root debug-237555 performance-api/performance-observer-callback-after-gc.html --iterations 500 -f --debug

[Radar WebKit Bug Importer]

<rdar://problem/45649982>

[Alexey Proskuryakov]

*** Bug 193935 has been marked as a duplicate of this bug. ***

[Chris Dumez]

Created attachment 360759 [details]
Patch

[Joseph Pecoraro]

Comment on attachment 360759 [details]
Patch

r=me, seems good

[WebKit Commit Bot]

Comment on attachment 360759 [details]
Patch

Clearing flags on attachment: 360759

Committed r240817: <https://trac.webkit.org/changeset/240817>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.