[Webkit-unassigned] [Bug 174968] New: Web Inspector: add TreeElement virtualization for the Recording tab

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=174968

            Bug ID: 174968
           Summary: Web Inspector: add TreeElement virtualization for the
                    Recording tab
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: drousso at apple.com
                CC: inspector-bugzilla-changes at group.apple.com

When a single frame has over ~3000 actions, it becomes very slow, bordering on unusable.  The main reason for this slowdown is the massive number of DOM elements, so adding/removing them depending on what's visible (plus some extra buffer) would drastically improve performance.

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