Use launchSettings.json outside debugging environment?

Question

Use launchSettings.json outside debugging environment?

Sedlmair, Martin (SHS DI CT R&D CTC SA) 6

I'm having a .NET core desktop application where I need to set some environment variables before the runtime starts up. Specifically I need to set the DOTNET_Thread_UseAllCpuGroups=true to enable NUMA core processing. Currently I couldn't find any way to set the environment variables. runtimeConfig.json does not allow this.

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Bruce (SqlWork.com) 77,686 Volunteer Moderator

Environment variables are set before running the program. You could make a bat file that sets the variables, then runs the app.

Sedlmair, Martin (SHS DI CT R&D CTC SA) 6 Reputation points

2022-01-13T16:44:57.023+00:00

@Bruce (SqlWork.com) : That was my current solution but I was hoping that there is a more modern solution nowadays. But it seems it isn't. runtimeConfig.json seemed to me to be a more appropriate solution to this because I want to configure the .NET runtime which DOTNET_Thread_UseAllCpuGroups effectively does.
Xingyu Zhao-MSFT 5,381 Reputation points

2022-01-14T02:07:40.3+00:00

Hi @Sedlmair, Martin (SHS DI CT R&D CTC SA) ,

runtimeConfig.json seemed to me to be a more appropriate solution to this

Unfortunately, DOTNET_Thread_UseAllCpuGroups cannot be set by runtimeconfig.json : CPU groups
Making a bat file may be the best choice.

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Use launchSettings.json outside debugging environment?

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