WebAssembly / WebAssembly/acquire-release-atomics

Supporting weaker memory orderings

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Dominant language
WebAssembly
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2
Forks
1
Avg merge
3h 51m
Merged PRs (30d)
4

Description

Currently, the Relaxed Atomics proposal focuses on introducing acquire-release memory ordering. While this is a significant improvement over sequential consistency, there are use cases that could benefit from even weaker orderings, such as C++'s relaxed ordering or load-store ordered atomics.

We should discuss the feasibility and design of supporting "more relaxed" orderings in this proposal.
Previous discussion: https://github.com/WebAssembly/shared-everything-threads/issues/60#issuecomment-2124173231

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Read the Relaxed Atomics proposal and the previous discussion linked in the issue. Determine the feasibility and design of supporting weaker orderings, including C++ relaxed and load-store ordered atomics. Done means the proposal has an agreed direction and documented scope.

Written by the indexing model from the issue text.

Assessment

Tech stack
wasm
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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