[Webkit-unassigned] [Bug 280922] New: REGRESSION(284532 at main): [ macOS wk2 ] 2x tiled-drawing/* test are flaky failing.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=280922

            Bug ID: 280922
           Summary: REGRESSION(284532 at main): [ macOS wk2 ] 2x
                    tiled-drawing/* test are flaky failing.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Scrolling
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aviduya at apple.com
                CC: kkinnunen at apple.com, mattwoodrow at apple.com,
                    simon.fraser at apple.com,
                    webkit-bot-watchers-bugzilla at group.apple.com,
                    webkit-bug-importer at group.apple.com

tiled-drawing/scrolling/fixed-background/fixed-body-background-zoomed.html
tiled-drawing/tile-size-slow-zoomed.html
are flaky failing. 

HISTORY: 
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=tiled-drawing%2Fscrolling%2Ffixed-background%2Ffixed-body-background-zoomed.html&test=tiled-drawing%2Ftile-size-slow-zoomed.html&version_name=Sequoia&version_name=Sonoma&version_name=Ventura

DIFF:
tiled-drawing/scrolling/fixed-background/fixed-body-background-zoomed.html
-          (tile cache coverage 0, 0 341 x 667)
-          (tile size 785 x 512)
-          (top left tile 0, 0 tiles grid 1 x 3)
+          (tile cache coverage 0, 0 445 x 667)
+          (tile size 512 x 512)
+          (top left tile 0, 0 tiles grid 2 x 3)

tiled-drawing/tile-size-slow-zoomed.html
-      (tile cache coverage 0, 0 470 x 352)
-      (tile size 800 x 600)
-      (top left tile 0, 0 tiles grid 1 x 1)
+      (tile cache coverage 0, 0 602 x 584)
+      (tile size 512 x 512)
+      (top left tile 0, 0 tiles grid 2 x 2)
       (in window 1)

DIFF LINK:
https://build.webkit.org/results/Apple-Sonoma-Debug-AppleSilicon-WK2-Tests/284573@main%20(4249)/tiled-drawing/scrolling/fixed-background/fixed-body-background-zoomed-diff.txt
https://build.webkit.org/results/Apple-Sonoma-Debug-AppleSilicon-WK2-Tests/284573@main%20(4249)/tiled-drawing/tile-size-slow-zoomed-diff.txt

REPRODUCIBILITY:
I was able to reproduce on ToT using command. 
run-webkit-tests <test_name> --iterations=10

DESCRIPTION: 
In 284532 at main changes were made to the tests

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