microsoft
High CPU Usage even after closing the app built with Windows App SDK 1.1.
Describe the bug
Very high CPU usage even when the app is closed. It is still running in the background. It only happens after you open WebView2 within app and then close the app. It seems to only affecting apps built with Window App SDK 1.1
Steps to reproduce the bug
- Open App built with Windows App SDK 1.1 (example WinUI 3 Gallery app).
- Open or use WebView2.
- Close the app.
App still running in the background with very high cpu usage.
Expected behavior
CPU usage should not be very high and It should stop the app running in the background.
Screenshots
Screenshot after closing the app. But it is still in the background
NuGet package version
No response
Packaging type
Packaged (MSIX)
Windows version
Windows 10 version 21H2 (19044, November 2021 Update)
IDE
Visual Studio 2022
Additional context
No response
@shyamshr93 Interesting issue, I'm having trouble reproducing it. Did you build the WinUI 3 Gallery yourself, or is this the version from the store? Do you see the same problem with other apps?
@krschau It is the version from the store. I have encountered it multiple times from the WinUI 3 app. I have build app of my own with webview2 and the issue is present but only after the Windows App SDK 1.1 .
If the issue only persists for a short time (under 30 seconds) it could indicate a crash occurred, and the high CPU is part of crash data collection. If you watch task manager, do you see "Windows Error Reporting" also busy at that time? I tried the scenario and did see error reporting kick in.
I don't see the "Windows Error Reporting" kick in anytime. It is still happening. The issue is not present in any version of WindowsAppSDK before 1.1
Just wanted to add this is probably due to this issue https://github.com/microsoft/WindowsAppSDK/issues/2712#issue-1295189146 . i no longer has this high CPU usage after the workaround used from the issue linked above