[Webkit-unassigned] [Bug 255254] New: [UI-side compositing] Scrolling is not as smooth as it should be on 120Hz displays

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=255254

            Bug ID: 255254
           Summary: [UI-side compositing] Scrolling is not as smooth as it
                    should be on 120Hz displays
           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: simon.fraser at apple.com
                CC: simon.fraser at apple.com

The scrolling thread blocks on RemoteLayerTreeEventDispatcher::waitForRenderingUpdateCompletionOrTimeout() for too long (up to 8ms) on 120Hz displays, when it should only block for 4ms.

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