[Webkit-unassigned] [Bug 248460] New: Canvas2D has performance degradation if Canvas HTML Element has outline

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=248460

            Bug ID: 248460
           Summary: Canvas2D has performance degradation if Canvas HTML
                    Element has outline
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Mac (Apple Silicon)
                OS: macOS 12
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Canvas
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: george.pomas at miro.com
                CC: dino at apple.com

Safari 16.1 and Safari 16.4 (Technology Preview) have performance degradation up to 10 times when outline is present on Canvas element. It is most noticeable on M1 machines, but it is also present on Intel machines, but to a much lesser extent.

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