The CPU usage is constantly high at 70% when my simple Trello board is at foreground. It drops to almost zero after I switch to another Chrome tab.Chrome dev console shows a list of errors:I guess there is a wild timer that keeps running at foreground which consumes a lot of CPU. Edit1: I have upgraded Chrome to 90.0.4430.93. The issue is still there.

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High CPU when Trello is at foreground on Chrome (89.0.4389.114)

High CPU when Trello is at foreground on Chrome (89.0.4389.114)

The CPU usage is constantly high at 70% when my simple Trello board is at foreground. It drops to almost zero after I switch to another Chrome tab.

Task Manager 2021-05-08 19-21-11.png

Chrome dev console shows a list of errors:

Bo's Tasks Trello 2021-05-08 19-22-45.png I guess there is a wild timer that keeps running at foreground which consumes a lot of CPU.

Edit1: I have upgraded Chrome to 90.0.4430.93. The issue is still there.

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Hi @Bo Hu ,

please share your screenshot to Trello support team as well

https://trello.com/en/contact#/

if you don't use the chrome extensions and you can reproduce in private mode of browser.

it's bug

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It's caused by a Chrome extension "Selection Highlighter". I have to turn it off as adding "trello.com" to its domain blacklist doesn't work. It must have injected some scripts that break trello.

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The same issue occurred again today after I disabled the extension. I have no idea what is the root cause and I'm afraid I don't have more time to investigate into it.

I switched to Safari.

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Like • dominik.stypula likes this

agree, just trello board opened is causing increase of the CPU usage couple of times, just let it opened and listen to the fans in your laptop

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Like • Roman Pletka likes this

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High CPU when Trello is at foreground on Chrome (89.0.4389.114)

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