Details
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Bug
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Resolution: Won't Do
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P2: Important
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None
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5.15.8
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Windows 10 Enterprise 20H2, Intel(R) Core(TM) i5-6300U CPU @ 2.40GHz, 16,0 GB
Description
After switching from Qt 5.15.2 to 5.15.8, WebEngine performance is significantly slower than before (probably related to JavaScript). I've attached an HTML file that demonstrates this behavior.
I used the simplebrowser example project and loaded this HTML file from a HTTP server on the same machine, and added some debug code to display elapsed time together with loadProgress.
Loading the attached file for the first time takes always less than 1 second with 5.15.2 and always more than 2 seconds with 5.15.8 - this only happens the first time the file is loaded, reloading takes about the same time with both versions
Attachments
Issue Links
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