Reproducible: Always Steps to reproduce: 1. Go to http://www.pokerevaluation.com/ Expected results: CPU usage less than 100% Actual results: 100% CPU Firefox 220.127.116.11, SeaMonkey 1.1, and the 20070122 trunk build of Minefield all give 100% CPU on the URL given. Opera 9.01 uses 12-25% CPU and IE uses 0% CPU. This looks like some sort of DHTML performance problem.
High CPU also with Firefox 18.104.22.168 on Linux
Severity: enhancement → normal
OS: Windows XP → All
Same here 98% CPU, Firefox 22.214.171.124 on Kubuntu, when I close the tab with that URL the CPU goes back to <1% Unlike other posters in the forums, it does not seem to slow down any other applications. Also CPU usage is high in the morning if I leave Firefox running overnight, only way to "fix" it the is to restart Firefox and re-opening the same pages. I am wondering if this could have some thing to do with the search bar? So I am guessing that there could be two (or more) different problems. I have removed the search bar and will update if that seems to fix the overnight problem.
There are permanent Restyle Reflow .... nsCSSFrameConstructor::RestyleEvent::Run happens always. ................................ #104 0xb61f007f in nsFrameManager::ComputeStyleChangeFor (this=0x83f59d4, aFrame=0x88e2880, aChangeList=0xbfde19f8, aMinChange=0) at layout/base/nsFrameManager.cpp:1435 #105 0xb61bbda3 in nsCSSFrameConstructor::RestyleElement (this=0x83f6cd0, aContent=0x850e6e0, aPrimaryFrame=0x88e2880, aMinHint=0) at layout/base/nsCSSFrameConstructor.cpp:9927 #106 0xb61bbf5a in nsCSSFrameConstructor::ProcessOneRestyle (this=0x83f6cd0, aContent=0x850e6e0, aRestyleHint=eReStyle_Self, aChangeHint=0) at layout/base/nsCSSFrameConstructor.cpp:12796 #107 0xb61bc187 in nsCSSFrameConstructor::ProcessPendingRestyles (this=0x83f6cd0) at layout/base/nsCSSFrameConstructor.cpp:12849 #108 0xb61bc292 in nsCSSFrameConstructor::RestyleEvent::Run (this=0x850d280) at layout/base/nsCSSFrameConstructor.cpp:12912 #109 0xb6cc06a1 in nsThread::ProcessNextEvent (this=0x80b2950, mayWait=0, result=0xbfde1c48) at xpcom/threads/nsThread.cpp:482 #110 0xb6c69216 in NS_ProcessPendingEvents_P (thread=0x80b2950, timeout=20) at nsThreadUtils.cpp:179 #111 0xb6ba7261 in nsBaseAppShell::NativeEventCallback (this=0x82c5d00) at widget/src/xpwidgets/nsBaseAppShell.cpp:111 #112 0xb6b8f868 in nsAppShell::EventProcessorCallback (source=0x82c5d40, condition=G_IO_IN, data=0x82c5d00) at widget/src/gtk2/nsAppShell.cpp:69 #113 0xb78eec7f in g_io_channel_unix_get_fd () from /usr/lib/libglib-2.0.so.0 #114 0xb78c5731 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #115 0xb78c87a6 in g_main_context_check () from /usr/lib/libglib-2.0.so.0 #116 0xb78c8b67 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #117 0xb7c6c281 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #118 0x0804c563 in main (argc=138263944, argv=0x1)
Tried http://www.pokerevaluation.com/ on Camino Version 2007022813 (1.0.4) running on Mac OS X 10.4.9 with the same results.
The reason style resolution is really expensive here is because of residual style handling. That leads to text nested hundreds of content nodes deep, all of which must be re-resolved every time the style on the automatic scroller changes. Reflow is also pretty expensive; I'd need to profile to see exactly where we're spending that time. On a side note, it seems like we could save a lot of memory in cases like this by somehow sharing mapped attributes.
Confirmed! Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:126.96.36.199pre) Gecko/2008070106 GranParadiso/3.0.1pre Shockwave Flash 9.0 r124
In using this URL, I get 100% CPU on my IBM T43 laptop running XP Pro SP3... http://www.nasdaq.com/?view=mynasdaq&selected=QCOM (I have 10 stocks listed) Safari 3.0 and IE 7.0143 both use less that %20 on the same site on the same computer... its a real pain... firefox 3.0.3
(In reply to comment #7) > In using this URL, I get 100% CPU on my IBM T43 laptop running XP Pro SP3... > http://www.nasdaq.com/?view=mynasdaq&selected=QCOM (I have 10 stocks listed) > Safari 3.0 and IE 7.0143 both use less that %20 on the same site on the same > computer... its a real pain... > > firefox 3.0.3 WFM - DELL LATITUDE D505 running XP PRO SP3 - I have 8 stocks listed Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:188.8.131.52) Gecko/2008092417 Firefox/3.0.3
Confirming high CPU usage on http://www.pokerevaluation.com/ in Mozilla Firefox 3.5 Beta 4 on Windows XP.
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