Blog

Backend engineering articles on distributed systems, databases, caching, and system design.

• The Thread Pool Trap: Why Increasing UV_THREADPOOL_SIZE Can Make Node.js Slower

  Oct 12, 2025 5 min read

  More threads should mean more performance — but in Node.js, increasing UV_THREADPOOL_SIZE can actually reduce throughput. Here's why.

  • nodejs
  • libuv
  • performance
  • concurrency
  • distributed-systems

• Why Streams Exist in Node.js — The Hidden Scaling Problem Most Engineers Miss

  Oct 5, 2025 5 min read

  Streams aren’t about files — they’re about controlling memory, handling backpressure, and keeping Node.js systems stable under load.

  • nodejs
  • streams
  • backpressure
  • performance
  • distributed-systems

• Backpressure in Node.js — The Problem Most APIs Ignore Until They Crash

  Sep 28, 2025 5 min read

  How fast producers overwhelm slow consumers in Node.js, and why ignoring backpressure leads to latency spikes, memory blowups, and cascading failures.

  • nodejs
  • streams
  • backpressure
  • performance
  • distributed-systems

• From Socket to Callback — The Hidden Journey of Every Node.js Request

  Sep 21, 2025 5 min read

  A deep dive into how a single HTTP request travels through the OS, libuv, and the Node.js event loop.

  • nodejs
  • event-loop
  • systems
  • backend
  • networking

• What Really Happens When 10,000 Requests Hit a Node.js Server

  Sep 14, 2025 5 min read

  A deep dive into how Node.js, the OS kernel, and the event loop actually behave under massive concurrent load.

  • nodejs
  • distributed-systems
  • performance
  • event-loop
  • backend