RESOLVED WORKSFORME 22164
Google spreadsheet update is much slower in Safari/Chrome than in Firefox 
https://bugs.webkit.org/show_bug.cgi?id=22164
Summary Google spreadsheet update is much slower in Safari/Chrome than in Firefox
John Newlin
Reported 2008-11-10 14:29:55 PST
I created a relatively large spreadsheet on this page: http://spreadsheets.google.com/ccc?key=pKH_GaQ9XjP781vNySuYzcA&hl=en If you edit one of the top elements, like interest rate, it takes Chrome/Safari about 6s to finish updating. Firefox completes the update in about 2s. The Wireshark trace shows that all of the new data is back from the server in about 1.5s. The rest of the time Chrome/Safari is busy updating the view.
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Eric Seidel (no email)
Comment 1 2008-11-10 14:38:00 PST
An example callstack: 0.0% 96.0% WebCore WebCore::XMLHttpRequest::didFinishLoading(WebCore::SubresourceLoader*) 0.0% 96.0% WebCore WebCore::XMLHttpRequest::callReadyStateChangeListener() 0.0% 96.0% WebCore WebCore::XMLHttpRequest::dispatchReadyStateChangeEvent() 0.0% 96.0% WebCore WebCore::JSAbstractEventListener::handleEvent(WebCore::Event*, bool) 0.0% 96.0% JavaScriptCore KJS::JSFunction::call(KJS::ExecState*, KJS::JSValue*, KJS::ArgList const&) 0.0% 96.0% JavaScriptCore KJS::Machine::execute(KJS::FunctionBodyNode*, KJS::ExecState*, KJS::JSFunction*, KJS::JSObject*, KJS::ArgList const&, KJS::ScopeChainNode*, KJS::JSValue**) 0.0% 96.0% JavaScriptCore KJS::Machine::privateExecute(KJS::Machine::ExecutionFlag, KJS::ExecState*, KJS::RegisterFile*, KJS::Register*, KJS::ScopeChainNode*, KJS::CodeBlock*, KJS::JSValue**) 0.0% 96.0% JavaScriptCore KJS::functionProtoFuncApply(KJS::ExecState*, KJS::JSObject*, KJS::JSValue*, KJS::ArgList const&) 0.0% 96.0% JavaScriptCore KJS::JSFunction::call(KJS::ExecState*, KJS::JSValue*, KJS::ArgList const&) 0.0% 96.0% JavaScriptCore KJS::Machine::execute(KJS::FunctionBodyNode*, KJS::ExecState*, KJS::JSFunction*, KJS::JSObject*, KJS::ArgList const&, KJS::ScopeChainNode*, KJS::JSValue**) 0.0% 96.0% JavaScriptCore KJS::Machine::privateExecute(KJS::Machine::ExecutionFlag, KJS::ExecState*, KJS::RegisterFile*, KJS::Register*, KJS::ScopeChainNode*, KJS::CodeBlock*, KJS::JSValue**) 0.0% 96.0% JavaScriptCore KJS::functionProtoFuncCall(KJS::ExecState*, KJS::JSObject*, KJS::JSValue*, KJS::ArgList const&) 0.0% 96.0% JavaScriptCore KJS::JSFunction::call(KJS::ExecState*, KJS::JSValue*, KJS::ArgList const&) 0.0% 96.0% JavaScriptCore KJS::Machine::execute(KJS::FunctionBodyNode*, KJS::ExecState*, KJS::JSFunction*, KJS::JSObject*, KJS::ArgList const&, KJS::ScopeChainNode*, KJS::JSValue**) 0.0% 96.0% JavaScriptCore KJS::Machine::privateExecute(KJS::Machine::ExecutionFlag, KJS::ExecState*, KJS::RegisterFile*, KJS::Register*, KJS::ScopeChainNode*, KJS::CodeBlock*, KJS::JSValue**) 0.0% 96.0% JavaScriptCore KJS::functionProtoFuncCall(KJS::ExecState*, KJS::JSObject*, KJS::JSValue*, KJS::ArgList const&) 0.0% 96.0% JavaScriptCore KJS::JSFunction::call(KJS::ExecState*, KJS::JSValue*, KJS::ArgList const&) 0.0% 96.0% JavaScriptCore KJS::Machine::execute(KJS::FunctionBodyNode*, KJS::ExecState*, KJS::JSFunction*, KJS::JSObject*, KJS::ArgList const&, KJS::ScopeChainNode*, KJS::JSValue**) 0.3% 96.0% JavaScriptCore KJS::Machine::privateExecute(KJS::Machine::ExecutionFlag, KJS::ExecState*, KJS::RegisterFile*, KJS::Register*, KJS::ScopeChainNode*, KJS::CodeBlock*, KJS::JSValue**) 0.0% 93.9% WebCore WebCore::JSElement::getValueProperty(KJS::ExecState*, int) const 0.0% 93.9% WebCore WebCore::Element::offsetHeight() 0.0% 93.9% WebCore WebCore::Document::updateLayoutIgnorePendingStylesheets() 0.0% 93.8% WebCore WebCore::Document::updateLayout() 0.0% 93.3% WebCore WebCore::FrameView::layout(bool) 0.0% 89.5% WebCore WebCore::RenderLayer::updateLayerPositions(bool, bool) 0.1% 89.5% WebCore WebCore::RenderLayer::updateLayerPositions(bool, bool) 0.7% 89.2% WebCore WebCore::RenderLayer::updateLayerPositions(bool, bool) 0.7% 38.6% WebCore WebCore::RenderObject::repaintAfterLayoutIfNeeded(WebCore::IntRect const&, WebCore::IntRect const&) 1.5% 24.6% WebCore WebCore::RenderTableCell::absoluteClippedOverflowRect() 0.5% 9.5% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.5% 8.9% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.5% 8.1% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.7% 7.3% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.5% 5.8% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.5% 5.1% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.8% 4.2% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.5% 2.9% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.3% 1.9% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.5% 1.2% WebCore WebCore::RenderBox::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.1% 0.3% WebCore WebCore::RenderView::computeAbsoluteRepaintRect(WebCore::IntRect&, bool) 0.2% 0.2% WebCore WebCore::RenderView::printing() const
Eric Seidel (no email)
Comment 2 2008-11-10 14:38:30 PST
All our time seems to be in table layout code
John Newlin
Comment 3 2009-05-13 09:48:58 PDT
I tried this with the latest Development version of Chrome, and Chrome refreshes the page 1 or 2s now, so apparently someone addressed the underlying issue, or google changed the spreadhsheet application to not hit this case.
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