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A comment on Making Your Game Go Fast by Asking Windows Nicely. Parent comment

Re:Making Your Game Go Fast by Asking Windows Nicely by masonremaley on Sunday January 16, 2022 @07:39PM (#29962061)
It's possible I'm misunderstanding the docs, but here's the line that lead me to believe linking to one of their libraries alone would be enough (and lead to my surprise when it didn't work):

(https://docs.nvidia.com/gameworks/content/technologies/deskt...)

> For any application without an existing application profile, there is a set of libraries which, when statically linked to a given application executable, will direct the Optimus driver to render the application using High Performance Graphics. As of Release 302, the current list of libraries are vcamp110.dll, vcamp110d.dll, nvapi.dll, nvapi64.dll, opencl.dll, nvcuda.dll, and cudart..

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Re:Making Your Game Go Fast by Asking Windows Nicely by Const-me on Sunday January 16, 2022 @07:48PM (#29962129)
Can it be that you linked to one of these libraries, but never called any function from that DLL, so your linker dropped the unused DLL dependency?

However, I don't really like that method. The app will fail to launch on computers without nVidia drivers, complaining about the missing DLL. For languages like C++ or Rust, the exported DWORD variable is the best way to go. The only reason I bothered with custom installer actions, that method wasn't available.

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Re:Making Your Game Go Fast by Asking Windows Nicely by masonremaley on Sunday January 16, 2022 @08:19PM (#29962306)
Hmm. I think I tried calling into their API to rule that out--but, it's been a while, so it's 100% possible I remember incorrectly which would explain why it didn't work!
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