Forum Discussion
High CPU usage on macOS
Thank you all for letting us know; your feedback has been heard and there will be an updating coming out shortly about this! 🙂
Fawkes (they/them)
Project & Community Manager - Microsoft Edge
Deleted HotCakeX Thanks for mentioning it. I have been running 82.0.446.0 continuously since March 12 and the issue has not recurred. Previously Edge would spike up to ~250% usage after running for a day or two and I'd have to restart. So, fingers crossed! Thanks. Looking forward to any further update.
stevexyz Yay! And to loop back, if you check out our What's New page from a mac, you should see our announcement about the fix. Let me know if you can't see it, and I'll send you a screenshot.
Fawkes (they/them)
Project & Community Manager - Microsoft EdgeDeleted That blog seems unlinkable, but I want to refer to it, so I'm reproducing it here.
Fix for high CPU usage on macOS
Thank you to everyone who shared and submitted feedback regarding high CPU usage on Microsoft Edge. We investigated the issue and identified a bug where a dependency on a library caused high CPU usage. We have seen instances where the CPU usage has spiked to 250% - 400% on macOS machines. We think that we have identified the cause and have a fix that should reduce the CPU usage overall. The fix is now available on Microsoft Edge Canary 82.0.449.0 and Microsoft Edge Dev 82.0.446.0, so users of the channels above will automatically receive it. If you are on an older build, please update your version of Microsoft Edge to the latest version. The fix will be in the Beta release expected at the end of March and in the Stable release expected at the end of April.
If you continue to experience performance regressions, please submit feedback through Microsoft Edge, specifying how the issue can be reproduced and/or submit a trace with the feedback.
Thanks so much for helping us improve Microsoft Edge!
I downloaded Edge Beta on April 9th or 10th, but I still have the issue. Did the fix make it into the beta channel? I'm helpfully attaching a sample file from Activity Monitor.
ionFreeman It looks like the fix is in 82.0.446.x and above. Because Beta is currently in an 81 build, the fix likely hasn't made its way up yet. However, Beta should be updating in the near future! If you still see similar CPU levels after the update, or if you try one of the other Insider channels now, please let us know.
Fawkes (they/them)
Project & Community Manager - Microsoft Edge
I've already sent feedback using the button but I'm getting over 150% CPU again. (This happens on random pages like Twitch). What's weird is that instead of simply showing Edge at max CPU, when opening Browser Task Manager, one of the subprocesses gets high CPU (like the rendering process, a random Extension, or a random page). I'm not sure if it's one of the pages/extensions fault or Edge going wrong. Just thought I'd report it here.
EDIT: It seems to be Twitch's Chat. Whenever I go in fullscreen, the tab only takes 20% CPU. But whenever the chat is opened/active, the CPU goes to 100% or more CPU and my laptop gets really hot (with full fans).
- That's great to hear 🙂
