I am trying to use the DuckDB library in a SwiftUI app. It does not seem to be able to allocate as much memory as it is available to it, and I was wondering if there is any setting I can tweak. I've logged the issue in their GitHub repo too, with full details.
Library code runs within your process. All the code running in your process — so your app and all the libraries it uses — has the same privileges as far as the OS is concerned. So, a library you link to can allocate as much memory as your app [1].
As to why this library is behaving the way it is, it’s hard to say without looking at the code. If you can isolate this to a point where Apple code is doing something unexpected, I’d be happy to take a look.
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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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[1] Memory allocation comes in two forms:
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Address space
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Physical pages that back that address space.
iOS and visionOS put limits on both. However, this statement is true for both, so I’m using “memory” as a shorthand.