mafintosh / mafintosh/event-loop-delay

emit a warning if the event loop delay is over a user-determined threshold.

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Dominant language
JavaScript
Stars
26
Forks
3
PR merge metrics
No merged PRs in 30d

Description

Accumulated event loop delay is great if we need it for stats purposes, however it will always grow to infinity. In long-running processes, something that is more valuable is to know if the event loop delay grows over a given threshold, plus the latest, point-in-time delay.

This enables 503 protection like https://github.com/mcollina/loopbench/blob/master/example.js#L20-L23.

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

The issue names no files or tests; start by inspecting the repository's event-loop delay sampler and the linked loopbench example. Define the user threshold and point-in-time delay behavior, then verify that long-running processes receive the requested warning and current delay.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
observability-sre, performance
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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