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Here's your scheduled comparison with WASM [LWN.net]
Cyberax · 2026-06-25 · via LWN.net comments

Here's your scheduled comparison with WASM

Posted Jun 24, 2026 20:21 UTC (Wed) by Cyberax (✭ supporter ✭, #52523)
Parent article: A helper library for BPF arenas

Here's your regular scheduled comparison with WASM and yet another reminder of the perils of the NIH syndrome.

In WASM these kinds of arenas are called "memories": https://github.com/WebAssembly/spec/blob/wasm-3.0/proposa...

And they have similar limitations, it's not possible to put opaque object references into them. They have to stay in WASM tables.

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