#observability

2 posts tagged with "observability"

• You’re Measuring Node.js Performance Wrong — Event Loop Lag in Production

  Aug 17, 2025 5 min read

  How to correctly measure event loop lag in Node.js using perf_hooks, histograms, and percentile-based alerting.

  • nodejs
  • performance
  • event-loop
  • observability
  • backend

• Event Loop Lag — The Metric That Matters More Than CPU in Node.js

  Aug 10, 2025 5 min read

  Why CPU usage lies about Node.js health and how event loop lag reveals real performance bottlenecks.

  • nodejs
  • event-loop
  • performance
  • observability
  • backend