Bug 301161

Summary: Batch repaints in non-composited iframes
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: Layout and RenderingAssignee: Simon Fraser (smfr) <simon.fraser>
Status: RESOLVED FIXED    
Severity: Normal CC: bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=301936

Simon Fraser (smfr)
Reported 2025-10-20 20:21:36 PDT
Every repaint inside a non-composited iframe propagates out to the repaint container in the enclosing document, which adds overhead. Instead, we can batch them, and mark the entire view dirty if the accumulated repaint area is large enough.
Attachments
Radar WebKit Bug Importer
Comment 1 2025-10-20 20:21:42 PDT
Simon Fraser (smfr)
Comment 2 2025-10-20 20:29:32 PDT
EWS
Comment 3 2025-10-22 12:00:03 PDT
Committed 301964@main (7ca23d97bf74): <https://commits.webkit.org/301964@main> Reviewed commits have been landed. Closing PR #52709 and removing active labels.
Note You need to log in before you can comment on or make changes to this bug.