Hotel website uses 100% CPU |
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Issue descriptionChrome Version: 60.0.3088.0 (Official Build) canary (64-bit) (also observed in 57.0.2987.133 (Official Build) (64-bit)) OS: Mac OS 10.12.4, Mac Pro Trashcan design What steps will reproduce the problem? (1) Visit http://meritagecollection.com/bacararesort/luxury-santa-barbara-accommodations/resort-amenities/ (2) Leave that tab on screen What is the expected result? The page uses minimal to no CPU after done loading. What happens instead? The page uses 100% CPU in perpetuity while the tab is focused Note that Safari shows a somewhat high amount of CPU on the main Safari process (e.g 50%) for the first few seconds after loading, but then settles down to a trivial amount after loading. Trace: https://drive.google.com/open?id=0BzwdQMmIG4kqM2F3dEJOcW5hTkE
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May 3 2017
I don't think it's that--it uses tons of CPU even minutes after everything has appeared to load. Perhaps it only triggers on a Mac Pro with dual GPUs, or it has something to do with having two monitors plugged in?
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May 3 2017
ResourceFetcher::determineRevalidationPolicy() is called 17627 times in 4 seconds when I run a trace on my machine (doesn't have dual monitors, but is a MBP). 14000+ times in the ~4seconds in your trace. I'm on M57 stable, so it's likely not a recent change in Chrome. Looking at the log, I'm going to see if Patrick has any clues. https://chromium.googlesource.com/chromium/src/+log/d8bc5fe8ad10e20a98bc0f35ee9010938c0771b8/third_party/WebKit/Source/platform/loader/fetch/ResourceFetcher.cpp
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Sep 20 2017
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Jul 30
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Jan 11
Available, but no owner or component? Please find a component, as no one will ever find this without one.
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Jan 15
I can't reproduce it. Is this issue still available? |
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Comment 1 by benhenry@chromium.org
, May 3 2017Labels: -Pri-3 Performance-Loading Performance-Browser Pri-2