My experience is now a few years old, but WASM binary we had ran less than 10% s... | Hacker News

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		izacus 7 months ago \| parent \| context \| favorite \| on: Microsoft Flight Simulator 2024: WebAssembly SDK My experience is now a few years old, but WASM binary we had ran less than 10% slower than C++ Clang compiled native binary from the same source. And that was for rendering code which is rather CPU intensive and benefits from optimisation. WASM is surprisingly fast.

connicpu 7 months ago [–]

It basically adds a bitmask to every memory access, which sounds about right for a 10% slowdown.

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