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Immediate arrays that are not scanned by the GC #38

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Immediate arrays that are not scanned by the GC #38

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gasche
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@gasche gasche commented May 17, 2024

Proposal: an Array.MakeImmediate : sig type t [@@immediate] end -> sig ... end functor that produces a monomorphic type of array-like structures that are not scanned by the GC. The suggested implementation uses a custom block to support comparison, etc.

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gasche
gasche commented Jun 4, 2024
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rfcs/immediate-arrays.md
by a dedicated library)

- bigarray access is slightly slower due to performing an extra read
to get the layout
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@lthls, @chambart pointed out that this is not true if the layout type of the bigarray is statically known. You get an extra indirection, but this should be okay. On the other hand, you might still run in GC-pacing issues if you have lots of small bigarrays.

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