What is the problem this feature will solve?

The V8 API hook (SetAtomicsWaitCallback) to support --trace-atomics-wait is fairly complex and adds maintenance burden. Further the only user of the API is node, and node only uses a subset of the functionality, and only for diagnostic purposes.

Is it feasible to remove this diagnostic functionality? Judging by the original commit message the original motivation was maybe to use the hooks to build a deadlock detection system, not just printf diagnostics. It's been 4 years since then, and if no such system has been prototyped and it's not on the roadmap anytime soon, I'd like to deprecate and remove the V8 API.

cc @addaleax

What is the feature you are proposing to solve the problem?

Remove --trace-atomics-wait

What alternatives have you considered?

No response