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High CPU usage on macOS

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pandawan
Occasional Contributor

For some reason, I get very high CPU usage on Edge Dev v79.0.294.1 on macOS 10.14.6

 

Attached is a screenshot of the Browser Task Manager with Edge at 180% CPU usage (somehow?)

My laptop's fans are running with only Edge opened and a couple of tabs which aren't very resource intensive. (The same CPU usage shows up on Activity Monitor).

 

Screen Shot 2019-10-10 at 10.49.27 AM.png

 

Edit: This doesn't seem to happen all of the time. Perhaps a specific number of tabs? Or a specific website is causing this. I still find it strange considering none of the tabs I have opened are resource intensive. 
Also, I'm not getting this issue on Safari (I haven't tried on Chrome). 

11 Replies

@pandawan I'm seeing the same thing here on masOS Catalina. I didn't capture the in-browser process reader but on the system level Edge's CPU usage increased exponentially with time. The strange thing is I'm looking at static pages, downloading files from one of the open pages, but nothing that I can think would need the CPU.

 

EGiIeJVUwAAanaY.jpg

@pandawan 

Hi,
please try disabling Microsoft Defender SmartScreen from the settings.

edge://settings/privacy

and see if it fixes the issue.

That seems to have worked. (I'll reply here if I get this issue again).

Thanks!
Thanks :)

@pandawan I'm seeing this as well. MacOS Mojave.

Hi,
which Edge insider channel?

@HotCakeX Edge Dev

@pandawan 

 

For me, Edge Dev has been excellent from a memory / cpu perspective on MacOS up until I upgraded to Catalina.  Since then, I've encountered the same issue you describe.

 

However, following the suggestion in this thread, I have disabled Defender SmartScreen, and that seems to have resolved the issue for now. Hopefully the Edge dev team can resolve the issue to enable MacOS users to turn the feature back on again later. 

 

On the other hand, MacOS Catalina doesn't seem very stable as a whole. It is very laggy. I wish I hadn't upgraded!

@timbowesI don't know much about Catalina, but it seems that you could remove it from what I've seen on the web.

@cjc2112 I think that only applies to the Beta, unfortunately. Catalina was the latests MacOS upgrade, released on 7 October, 2019. Potentially I could revert to a back up though. :)

I'm experiencing the same problem on Windows 10
https://techcommunity.microsoft.com/t5/Discussions/Super-High-CPU-usage-on-Windows-i9-9900K-Edge-ins...

the problem is no longer isolated to MacOS only..
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