Closed
Bug 189805
Opened 22 years ago
Closed 21 years ago
High Fidelity page causes Mozilla to run VERY slowly
Categories
(SeaMonkey :: General, defect)
Tracking
(Not tracked)
RESOLVED
DUPLICATE
of bug 143046
People
(Reporter: tom.williams, Assigned: asa)
References
()
Details
(Keywords: perf)
User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.3b) Gecko/20030116 Build Identifier: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.3b) Gecko/20030116 When I access the "High FIdelity" page in a borwser tab, at the above URL, Mozilla runs EXTREMELY slowly. When I close that browser tab, Mozilla performance returns to "normal". Reproducible: Always Steps to Reproduce: 1.Go to http://www.highfidelityreview.com/news/news.asp?newsnumber=16781358 2. Mozilla performance should slow down when scrolling through the page or navigating around the browser in general. 3. Actual Results: Mozilla performance degraded severely. Expected Results: Mozilla performance should NOT degrade to the point of almost being non-responsive.
Comment 1•22 years ago
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Well. I don't see performance drop, but I see that Mozilla eat 47-90% of comp's resources. But when I load page in IE, IE start eating resourses at the same rate.
Comment 2•22 years ago
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Wow - really tough :/ confirming using trunk build 2003011412 on winxp pro sp1, 1.1ghz,512ram, geforce2go,32mb ram
Reporter | ||
Comment 3•22 years ago
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I'm running Windows NT 4.0 (SP6) ona Pentium II 400 MHz w/ 256 MB of RAM.
Comment 4•22 years ago
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the slowness is because of the background image http://www.highfidelityreview.com/images/background.gif using build Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.3b) Gecko/20030119 possible dup of bug 64401?
Comment 6•22 years ago
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Same On MacOS 9.1 Memory used by mozilla (seen with "about this computer menu") With the page opend in a tab : 82 Mb After closing the tab: 35 Mb
Comment 7•21 years ago
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Still happening with mozilla 1.5rc1 on W2K. The page loads completly, and mozilla says it is "Done" but continues to use 80 or 90% cpu. Closing the tab restores things to normal.
Comment 9•21 years ago
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*** This bug has been marked as a duplicate of 143046 ***
Status: NEW → RESOLVED
Closed: 21 years ago
Resolution: --- → DUPLICATE
Comment 12•21 years ago
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OK, I'm the one who posted the latest duplicate of this bug (#249966). As reported above, the reason for all the problems is this large animated gif: http://www.highfidelityreview.com/images/background.gif Mozilla resizes this image to fit into the browser window. When the image is not resized, CPU usage is modest (try using the "magnifying glass"). When the image is resized, CPU usage is excessive. Memory usage is large either way, but perhaps this is not mozilla's fault. There are two simple workarounds for the problem. One is to allow animated images to loop only once (Edit -> Preferences -> Privacy & Security -> Images). This will affect all websites, of course, and will only solve the excess CPU usage, not the excess memory. As a variant, there may be a way to stop images being scaled to fit the browser window. The second workaround is to add this image to your proxy's block list (I use adzapper for squid, http://adzapper.sourceforge.net). This solves memory and CPU usage without affecting any other websites (plus you can block all sorts of annoying advertisements and conserve bandwidth etc.). Hope this helps someone. It is not really clear from bugs #143046 or #124150 how easy it is to fix the CPU usage in the mozilla trunk, or how soon such a fix is likely to happen.
Updated•20 years ago
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Product: Browser → Seamonkey
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Description
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