Node.js Performance Optimization

Performance is key to user experience. In this post, we explore event loop monitoring, clustering, and caching strategies for Node.js. Many developers forget that Node.js is single-threaded for execution but uses internal pools for I/O. By understanding how the libuv event loop works, you can avoid blocking operations that kill scalability. We will also cover practical implementation of Redis for distributed caching and how to use the built-in cluster module to take full advantage of multi-core processors in production environments.