[Webkit-unassigned] [Bug 73853] Inserting nodes is slow due to Node::notifyNodeListsAttributeChanged (20%+)

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Dec 5 12:34:44 PST 2011


https://bugs.webkit.org/show_bug.cgi?id=73853





--- Comment #2 from Ryosuke Niwa <rniwa at webkit.org>  2011-12-05 12:34:44 PST ---
Created an attachment (id=117919)
 --> (https://bugs.webkit.org/attachment.cgi?id=117919&action=review)
profile result

20.7%   20.7%   WebCore    WebCore::Node::notifyNodeListsAttributeChanged()
0.0%    20.6%   WebCore      WebCore::Node::dispatchSubtreeModifiedEvent()
0.0%    0.1%    WebCore      WebCore::ContainerNode::insertBefore(WTF::PassRefPtr<WebCore::Node>, WebCore::Node*, int&, bool)
0.0%    0.0%    WebCore      WebCore::ContainerNode::appendChild(WTF::PassRefPtr<WebCore::Node>, int&, bool)
3.3%    3.3%    WebCore    WebCore::QualifiedName::init(WTF::AtomicString const&, WTF::AtomicString const&, WTF::AtomicString const&)
3.3%    3.3%    WebCore    WebCore::JSNodeOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown>, void*, JSC::SlotVisitor&)
2.8%    2.8%    WebCore    WebCore::JSNodeOwner::finalize(JSC::Handle<JSC::Unknown>, void*)
2.8%    2.8%    WebCore    WebCore::createHTMLSpanElementWrapper(JSC::ExecState*, WebCore::JSDOMGlobalObject*, WTF::PassRefPtr<WebCore::HTMLElement>)
2.6%    2.6%    JavaScriptCore WTF::AtomicString::addSlowCase(WTF::StringImpl*)
2.0%    2.0%    WebCore    WTF::HashMap<WTF::AtomicStringImpl*, WTF::PassRefPtr<WebCore::HTMLElement> (*)(WebCore::QualifiedName const&, WebCore::Document*, WebCore::HTMLFormElement*, bool), WTF::PtrHash<WTF::AtomicStringImpl*>, WTF::HashTraits<WTF::AtomicStringImpl*>, WTF::HashTraits<WTF::PassRefPtr<WebCore::HTMLElement> (*)(WebCore::QualifiedName const&, WebCore::Document*, WebCore::HTMLFormElement*, bool)> >::get(WTF::AtomicStringImpl* const&) const
1.9%    1.9%    WebCore    WTF::HashMap<WTF::AtomicStringImpl*, WebCore::JSDOMWrapper* (*)(JSC::ExecState*, WebCore::JSDOMGlobalObject*, WTF::PassRefPtr<WebCore::HTMLElement>), WTF::PtrHash<WTF::AtomicStringImpl*>, WTF::HashTraits<WTF::AtomicStringImpl*>, WTF::HashTraits<WebCore::JSDOMWrapper* (*)(JSC::ExecState*, WebCore::JSDOMGlobalObject*, WTF::PassRefPtr<WebCore::HTMLElement>)> >::get(WTF::AtomicStringImpl* const&) const
1.8%    1.8%    WebCore    WebCore::jsDocumentPrototypeFunctionCreateElement(JSC::ExecState*)

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