[Webkit-unassigned] [Bug 126970] New: [ATK] AXChildrenChanged notification handling is a performance black hole

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=126970

           Summary: [ATK] AXChildrenChanged notification handling is a
                    performance black hole
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: zandobersek at gmail.com
                CC: mario at webkit.org


in AXObjectCache::postPlatformNotification, handling the AXChildrenChanged is causing great performace reduction when loading the single-page HTML Living Standard document.
http://trac.webkit.org/browser/trunk/Source/WebCore/accessibility/atk/AXObjectCacheAtk.cpp#L196
http://www.whatwg.org/specs/web-apps/current-work/

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