[Webkit-unassigned] [Bug 117703] [WK2][GTK] Extremelly slow rendering of a page with animations

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=117703





--- Comment #1 from Sergio Villar Senin <svillar at igalia.com>  2013-06-17 09:29:17 PST ---
Not sure if very useful, but it looks like the code is constantly doing this:

(gdb) bt
#0  0x00007fbde8989b9a in WTF::HashTableConstIterator<WTF::RefPtr<WebCore::Widget>, WTF::RefPtr<WebCore::Widget>, WTF::IdentityExtractor, WTF::PtrHash<WTF::RefPtr<WebCore::Widget> >, WTF::HashTraits<WTF::RefPtr<WebCore::Widget> >, WTF::HashTraits<WTF::RefPtr<WebCore::Widget> > >::get () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#1  0x00007fbde8988d32 in WTF::HashTableConstIteratorAdapter<WTF::HashTable<WTF::RefPtr<WebCore::Widget>, WTF::RefPtr<WebCore::Widget>, WTF::IdentityExtractor, WTF::PtrHash<WTF::RefPtr<WebCore::Widget> >, WTF::HashTraits<WTF::RefPtr<WebCore::Widget> >, WTF::HashTraits<WTF::RefPtr<WebCore::Widget> > >, WTF::RefPtr<WebCore::Widget> >::get () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#2  0x00007fbde8987d8c in WTF::HashTableConstIteratorAdapter<WTF::HashTable<WTF::RefPtr<WebCore::Widget>, WTF::RefPtr<WebCore::Widget>, WTF::IdentityExtractor, WTF::PtrHash<WTF::RefPtr<WebCore::Widget> >, WTF::HashTraits<WTF::RefPtr<WebCore::Widget> >, WTF::HashTraits<WTF::RefPtr<WebCore::Widget> > >, WTF::RefPtr<WebCore::Widget> >::operator* () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#3  0x00007fbde91320c8 in collectFrameViewChildren () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#4  0x00007fbde913bcca in WebCore::FrameView::updateLayoutAndStyleIfNeededRecursive () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#5  0x00007fbde88490ce in WebKit::WebPage::layoutIfNeeded () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#6  0x00007fbde88758d4 in WebKit::LayerTreeHostGtk::flushAndRenderLayers () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#7  0x00007fbde887554c in WebKit::LayerTreeHostGtk::layerFlushTimerFired () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#8  0x00007fbde88754ec in WebKit::LayerTreeHostGtk::layerFlushTimerFiredCallback () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#9  0x00007fbde503bb5e in g_timeout_dispatch (source=0x1bf20c0, callback=0x7fbde88754d4 <WebKit::LayerTreeHostGtk::layerFlushTimerFiredCallback(WebKit::LayerTreeHostGtk*)>, user_data=0x17f5fe0) at gmain.c:4417
#10 0x00007fbde5039e01 in g_main_dispatch (context=0x112f960) at gmain.c:3058
#11 0x00007fbde503ab66 in g_main_context_dispatch (context=0x112f960) at gmain.c:3634
#12 0x00007fbde503ad56 in g_main_context_iterate (context=0x112f960, block=1, dispatch=1, self=0x117b500) at gmain.c:3705
#13 0x00007fbde503b186 in g_main_loop_run (loop=0x1167ea0) at gmain.c:3899
#14 0x00007fbde9ed149a in WebCore::RunLoop::run () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#15 0x00007fbde8782a8c in WebProcessMainGtk () from /opt/checkout/WebKit/WebKitBuild/Debug/.libs/libwebkit2gtk-3.0.so.25
#16 0x00000000004009fc in main ()

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