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High CPU usage when mouse over/selecting elements in "inspect > elements"
Reported by
2any...@gmail.com,
Apr 18 2018
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3399.0 Safari/537.36 Steps to reproduce the problem: 1. open "http://www.cuhk.edu.hk/ics/21c/zh/issues/c141.html", actually it happens every page I tried, but I found this on the prefixed page. 2. F12 > open inspect tools 3. select tab: elements 4. mouse over any elements in the tree, or select one by one, cpu will become 50%~80% high till you move mouse out of elements window. What is the expected behavior? Normal cpu usage when mouse over items in elements window. tried to fix by researching: 1. in --disable-extensions mode, same thing happens. 2. checked setting > workspace, there isn't any local folder there, I even reset the settings to default, didn't work. What went wrong? mouse over on items in elements window is kind of normal thing, keeping high CPU usage is, I think, some bugs there. Did this work before? Yes not sure the version number, but I believe it works in the updated version month ago. Chrome version: 68.0.3399.0 Channel: canary OS Version: 6.3 Flash Version: Thanks.
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Apr 19 2018
Thanks for filing the issue! Unable to reproduce the issue on reported chrome version 68.0.3399.0 using Windows 10 with the below mentioned steps. 1. Launched chrome 2. Navigated to http://www.cuhk.edu.hk/ics/21c/zh/issues/c141.html 3. Inspected the page -> Opened DevTools -> Elements tab 4. Hovered the mouse on elements/selected one after other. We didn't observe any high CPU usage. Attaching the screen cast of the same. Note: Tentatively adding component "Platform>DevTools>Performance" please change if this isn't apt. @Reporter: Could you please have a look at the screen cast and let us know if we have missed anything in the process. Any further inputs from your end may be helpful.
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Apr 19 2018
Thanks for the screen video @vamshi.kommuri: Could you please have a look at the screen cast and let us know if we have missed anything in the process. // I don't find out anything different but cpu usage. I think a screen video from my end will help you to address the issue. I use the same software to capture screen, and using --disable-extension chromium: and you will see cpu in my end is about 80-200 high when mouse over or select in Inspect > elements window, but after mouse move out of the window, cpu down to normal. :(
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Apr 19 2018
Thank you for providing more feedback. Adding the requester to the cc list. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Apr 20 2018
Rechecked the issue on reported chrome version 68.0.3399.0 using Windows 10 with the exact steps mentioned in comment#2, still we are unable to see high CPU usage. @Reporter: From your comment#3 which says --disable-extension chromium: is being used, Could you please check the same in a new profile with out any apps and extensions and let us know if the issue still persists. Thanks!
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Apr 23 2018
I suspect this to be the same issue (overlay with non-standard color space?)
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Apr 23 2018
@pfeldman yes, I do use a custom color space, do you know how to deal with this?
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Apr 23 2018
We have a fix for you, just not sure when it hits stable.
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Apr 24 2018
@pfeldman great, Im looking forward to have the update. :) thanks.
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May 9 2018
this bug has been fixed on Version 68.0.3424.0 (Official Build) (64-bit), thanks.
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Jul 25
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Dec 4
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Comment 1 by viswa.karala@chromium.org
, Apr 19 2018