dotnet-trace flamegraph displays '?!?' instead of method names for my code

Question

dotnet-trace flamegraph displays '?!?' instead of method names for my code

Dmitry Filippov 0

I have a maui blazored app. When I build app for Android platform with Debug configuration and collect startup trace, then I can see flamegraph with readable method names by uploading speedsope.json file to https://www.speedscope.app/ When I build app for Android platform with Release configuration and collect startup trac, then flamegraph contains '?!?' instead of method names (mostly for my code) I build app with command dotnet build -f net7.0-android -t:Run -c Release -p:AndroidEnableProfiler=true I collect trace with command dotnet-trace collect --diagnostic-port /tmp/maui-app --format speedscope Here is how flamegraph looks like. User's image

Why are method names missing and what can be done to fix it?

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,126 Reputation points Microsoft External Staff

2023-04-10T06:06:18.1+00:00
For further investigation, could you please provide the following information?

Your Android API level and MAUI version.

Do you use some third-party plugins?

Does this issue occur if you test with a new project?

Your prompt reply will be highly appreciated.
Dmitry Filippov 0 Reputation points

2023-04-10T09:01:49.7066667+00:00
Android API level: android:minSdkVersion="28" android:targetSdkVersion="33"

MAUI version: .NET 7

Yes, we have quite a lot of third party dependencies:

Also you can take a look at the project at https://github.com/Actual-Chat/actual-chat/blob/dev/src/dotnet/App.Maui/App.Maui.csproj

No. I tested a templated maui blazored app project and I could take profile in release mode with proper method names

Your answer

Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 50,126 Reputation points Microsoft External Staff

2023-04-10T06:06:18.1+00:00

For further investigation, could you please provide the following information?

Your Android API level and MAUI version.

Do you use some third-party plugins?

Does this issue occur if you test with a new project?

Your prompt reply will be highly appreciated.
Dmitry Filippov 0 Reputation points

2023-04-10T09:01:49.7066667+00:00

Android API level: android:minSdkVersion="28" android:targetSdkVersion="33"

MAUI version: .NET 7

Yes, we have quite a lot of third party dependencies:

Also you can take a look at the project at https://github.com/Actual-Chat/actual-chat/blob/dev/src/dotnet/App.Maui/App.Maui.csproj

No. I tested a templated maui blazored app project and I could take profile in release mode with proper method names

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dotnet-trace flamegraph displays '?!?' instead of method names for my code

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