webcoderspeed.com
4 articles
You deploy a seemingly innocent feature and suddenly CPU spikes from 20% to 95%. Response times triple. The root cause could be a regex gone wrong, a JSON parse on every request, a synchronous loop, or a dependency update. Here''s how to diagnose and fix CPU hotspots in production.
What eBPF actually is, Cilium for network observability, Parca for continuous profiling, BCC tools, eBPF vs traditional APM, and production safety considerations.
Debug memory leaks systematically. Learn heap snapshots, heapdump module, Chrome DevTools analysis, WeakRef patterns, and V8 GC tuning for production stability.
Master Node.js profiling with Clinic.js and V8 flame graphs. Identify CPU-bound code, async bottlenecks, and memory leaks before they impact production.