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[WASM / CoreCLR GC] Can we support the hard heap limits on 32 bit? #118943
Description
WASM memory model makes it very similar to an environment with very restricted virtual address space, where we don't want to reserve large blocks of memory upfront (since they also get 'committed' right away). It is also an environment where this restriction can be very tight (< 32 MB).
Right now, the default 32 bit config reserves something like ~50MB of memory on startup, which is pretty large, and this number doesn't respect the WASM memory limits because the necessary code is 64-bit only.
Is fixing that "just work" or something trickier?
Ref: #85844.
Context: dotnet/runtimelab#3150.
Reacted by Dennis Fehr
Reacted by Dennis Fehr
Activity
dotnet-policy-service commentedon Aug 20, 2025
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dotnet-policy-service commentedon Sep 9, 2025
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