Bug 207559

Summary: [ macOS iOS ] fast/parser/parser-yield-timing.html is a flaky failure
Product: WebKit Reporter: Jacob Uphoff <jacob_uphoff>
Component: Tools / TestsAssignee: Ryosuke Niwa <rniwa>
Status: RESOLVED FIXED    
Severity: Normal CC: cdumez, ggaren, koivisto, rniwa, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Delete the test ggaren: review+

Description Jacob Uphoff 2020-02-11 09:39:17 PST 
fast/parser/parser-yield-timing.html

This test has been flaky failing for all visible history.

Test is failing on macOS wk1 and iOS wk2 on debug.

I ran the test on macOS wk1 5000 times and I was able to reproduce the failure.

History: 

https://results.webkit.org/?suite=layout-tests&test=fast%2Fparser%2Fparser-yield-timing.html&limit=50000

Diff:

--- /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/fast/parser/parser-yield-timing-expected.txt
+++ /Volumes/Data/slave/catalina-debug-tests-wk1/build/layout-test-results/fast/parser/parser-yield-timing-actual.txt
@@ -5,7 +5,7 @@
 
 PASS new Date().getTime() - startTime is within 400 of 1000
 PASS new Date().getTime() - startTime is within 400 of 2000
-PASS new Date().getTime() - startTime is within 400 of 3000
+FAIL new Date().getTime() - startTime should be within 400 of 3000. Was 3423.
 PASS successfullyParsed is true
 
 TEST COMPLETE
Comment 1 Radar WebKit Bug Importer 2020-02-11 09:39:38 PST 
<rdar://problem/59351383>
Comment 2 Ryosuke Niwa 2020-03-23 15:38:13 PDT 
Created attachment 394313 [details]
Delete the test
Comment 3 Geoffrey Garen 2020-03-23 21:37:16 PDT 
Comment on attachment 394313 [details]
Delete the test

r=me
Comment 4 Ryosuke Niwa 2020-03-24 12:19:32 PDT 
Committed r258927: <https://trac.webkit.org/changeset/258927>