Bug 221843 - REGRESSION (r272784): [macOS Release] fast/animation/request-animation-frame-throttling-lowPowerMode.html is a flaky failure
Summary: REGRESSION (r272784): [macOS Release] fast/animation/request-animation-frame-...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: New Bugs (show other bugs)
Version: Other
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Alex Christensen
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2021-02-12 13:46 PST by Ryan Haddad
Modified: 2021-02-12 16:32 PST (History)
4 users (show)

See Also:


Attachments
Patch (2.76 KB, patch)
2021-02-12 16:20 PST, Alex Christensen
cdumez: review+
Details | Formatted Diff | Diff

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Description Ryan Haddad 2021-02-12 13:46:09 PST
fast/animation/request-animation-frame-throttling-lowPowerMode.html has recently become a flaky failure on macOS release bots;

--- /Volumes/Data/slave/bigsur-release-tests-wk2/build/layout-test-results/fast/animation/request-animation-frame-throttling-lowPowerMode-expected.txt
+++ /Volumes/Data/slave/bigsur-release-tests-wk2/build/layout-test-results/fast/animation/request-animation-frame-throttling-lowPowerMode-actual.txt
@@ -3,7 +3,7 @@
 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
 
-PASS framesPerSecond < 35 is true
+FAIL framesPerSecond < 35 should be true. Was false.
 PASS successfullyParsed is true
 
 TEST COMPLETE

https://results.webkit.org/?suite=layout-tests&test=fast%2Fanimation%2Frequest-animation-frame-throttling-lowPowerMode.html
Comment 1 Radar WebKit Bug Importer 2021-02-12 13:46:33 PST
<rdar://problem/74290541>
Comment 2 Ryan Haddad 2021-02-12 13:49:00 PST
It looks like this test first failed with r272702 and r272703, then passed consistently until r272784.

r272705 was a revert of r272702, which was re-landed in r272784.

I haven't confirmed locally, but this suggests that r272784 is indeed the regression point.
Comment 3 Alex Christensen 2021-02-12 16:20:41 PST
Created attachment 420189 [details]
Patch
Comment 4 Alex Christensen 2021-02-12 16:32:16 PST
r272824