Why Your Node.js App Freezes for 1.5 Seconds (Stop-The-World GC) скачать в хорошем качестве

Why Your Node.js App Freezes for 1.5 Seconds (Stop-The-World GC)

Ever seen your Node.js service randomly freeze, spike to 1–2 seconds latency, then magically recover — with CPU and memory looking “fine”? This video explains Stop-The-World (STW) garbage collection in V8 using a real production incident from a payment gateway system. You’ll learn: Why Node.js can completely stop responding during GC How V8 Major GC freezes the event loop Why monitoring tools often miss these pauses How large heaps make latency worse, not better The throughput vs tail-latency trade-off in managed runtimes How senior engineers design systems to be pause-sensitive Practical fixes: smaller heaps, horizontal scaling, Redis, and reduced allocation pressure If you work with Node.js, backend systems, high-throughput APIs, or latency-sensitive services, this mental model will permanently change how you debug performance issues. This is not theory — it’s how real systems fail in production.