Bug 222756

Summary: [GLIB] http/tests/performance/paint-timing/performance-paint-timing-fcp-after-visually-non-empty-for-style.html is flaky failing since added in r260851
Product: WebKit Reporter: Lauro Moura <lmoura>
Component: WebCore Misc.Assignee: Nobody <webkit-unassigned>
Status: RESOLVED FIXED    
Severity: Normal CC: bugs-noreply, noam, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=208499

Description Lauro Moura 2021-03-04 12:08:38 PST
http/tests/performance/paint-timing/performance-paint-timing-fcp-after-visually-non-empty-for-style.html

Results dashboard: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fperformance%2Fpaint-timing%2Fperformance-paint-timing-fcp-after-visually-non-empty-for-style.html

Local results running it alone:
* GTK-xvfb: 300 runs, 11 failures.
* WPE: 300 runs, 4 failures.

On the bots, more flaky on GTK-Wayland and WPE-Release than on GTK-X11.

Diff:

--- /home/lauro/dev/WebKit/layout-test-results/http/tests/performance/paint-timing/performance-paint-timing-fcp-after-visually-non-empty-for-style-expected.txt
+++ /home/lauro/dev/WebKit/layout-test-results/http/tests/performance/paint-timing/performance-paint-timing-fcp-after-visually-non-empty-for-style-actual.txt
@@ -1,2 +1,2 @@
-PASS paintEntry.startTime >= styleEntry.startTime + styleEntry.duration is true
+FAIL paintEntry.startTime >= styleEntry.startTime + styleEntry.duration should be true. Was false.
 TEXT
Comment 1 Radar WebKit Bug Importer 2021-03-11 12:09:15 PST
<rdar://problem/75327139>
Comment 2 Lauro Moura 2021-08-03 11:49:50 PDT
Both GTK/WPE started passing consistently since between (238414@main-238416@main].

Likely due to 238416@main: Fix WPT test resource-timing/cross-origin-redirects.html