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Atomics.pause

Category

JavaScript

Type

Chromium catches up

Status

Enabled by default (Chrome 133)

Intent stage

None

Summary

Adds the Atomics.pause method to hint the CPU that the current code is executing a spinlock.

Motivation

Enables writing more efficient spinlocks.

Standards & signals

• Specification: https://tc39.es/proposal-atomics-microwait
• Firefox: Positive — This is a Stage 3 TC39 proposal.
• Safari: Positive — This is a Stage 3 TC39 proposal.
• Web developers: No signals

Docs: https://github.com/tc39/proposal-atomics-microwait/blob/main/README.md

View on chromestatus.com