Consider settings startup environment variables in runtimeConfig.json

[msedi]

Currently there exists no way to configure environment variables on the startup of a .NET desktop application. This is especially relevant when you want to configure environment variables that control the .NET runtime behavior DOTNET_Thread_UseAllCpuGroups.

The current solution is to create a starter batch file that sets the parameters. launchSettings.json already has a possibility to startup the debug session with environment variables, so I would suggest to introduce the same concept in runtimeConfig.json

    "environmentVariables": {
        "DOTNET_Thread_UseAllCpuGroups": "true"
      }

[huoyaoyuan]

This is especially relevant when you want to configure environment variables that control the .NET runtime behavior

Doesn't it have an alternative form in runtime config?

[msedi]

I looked in up in the schema definition but couldn't find any docs about this. Moreover the problem is that I need to set in the runtimeConfig.template.json which seems to allow only settings configProperties (like this example here):

 "configProperties": {
      "System.GC.Concurrent": false,
      "System.Threading.ThreadPool.MinThreads": 4,
      "System.Threading.ThreadPool.MaxThreads": 25
    }

Maybe I'm wrong.