[Webkit-unassigned] [Bug 254118] New: [UI-side compositing] A no-op rendering update still triggers a WindowServer update

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Sat Mar 18 11:40:05 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=254118

            Bug ID: 254118
           Summary: [UI-side compositing] A no-op rendering update still
                    triggers a WindowServer update
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Process Model
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: simon.fraser at apple.com

A page that runs requestAnimationFrame() which doesn't trigger any rendering will still trigger UI-process CA commits, and thus WindowServer updates. This is a power drain.

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