typelevel / typelevel/cats-effect

More efficient monitoring of fibers on virtual threads

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:beetle: bug
Dominant language
Scala
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Spinning out of https://github.com/typelevel/cats-effect/issues/3929#issuecomment-1896382827.

We fixed the memory leak, but monitoring fibers on virtual threads still has a single point of contention.

Contributor guide

Open the contributing guide

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

Start by reading the linked Cats Effect issue 3929 comment and tracing how fiber monitoring behaves on virtual threads. The issue does not name files or tests; done means addressing the remaining single point of contention without regressing the memory-leak fix.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
observability
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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