[Webkit-unassigned] [Bug 247718] New: getClientRects is extremely slow on certain condition
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Nov 10 00:21:33 PST 2022
https://bugs.webkit.org/show_bug.cgi?id=247718
Bug ID: 247718
Summary: getClientRects is extremely slow on certain condition
Product: WebKit
Version: Safari 16
Hardware: iPhone / iPad
OS: iOS 16
Status: NEW
Severity: Normal
Priority: P2
Component: New Bugs
Assignee: webkit-unassigned at lists.webkit.org
Reporter: skoji at skoji.jp
HTML to reproduce the bug; https://skoji.jp/get-client-rects-extremely-slow.html
getClientRects is extremeley slow with this sambple on iPad OS 16.1 compared to iPadOS 13.7 or iPadOS 14.5.
The result of sample above:
* (Simulator) iPad Pro (12.9-inch 4th gen)/ iPadOS 13.7 : 541 msec
* (Simulator) iPad Pro (12.9-inch 5th gen)/ iPadOS 14.5 : 1629 msec
* (Simulator) iPad Pro (12.9-inch 5th gen)/ iPadOS 16.1 : 46384 msec
* iPad 7th generation / iPadOS 15.5 : 25274 msec
* iPad Pro (11-inch) 2nd generation : 17811 msec
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