how to discard memory in wasmtime? · general

Stream: general

Topic: how to discard memory in wasmtime?

Srayan Jana (Oct 23 2025 at 08:00):

I’m aware that this isn’t part of the wasm spec yet (see https://github.com/WebAssembly/design/issues/1397
https://github.com/WebAssembly/memory-control/issues/7)
But is there some sort of unofficial wasmtime extension or something to detect when memory isn’t being use and shrink it?

Wasm needs a better memory management story · Issue #1397 · WebAssembly/design

Hi all, after a video call with google last week, I was encouraged to raise a conversation here around issues we at Unity have with Wasm memory allocation. The short summary is that currently Wasm ...

`memory.discard` in a separate proposal? · Issue #7 · WebAssembly/memory-control

Hi! I think it would be better to put the memory.discard instruction into a separate proposal. Grouping this instruction with other features is not strictly necessary and slows down the work on it....

Notification Bot (Oct 23 2025 at 09:43):

This topic was moved to #wasmtime > how to discard memory in wasmtime? by Till Schneidereit.

Last updated: Dec 06 2025 at 05:03 UTC