Diagnosing Hanging Requests and Timeouts in Fastify
Learn how to diagnose and fix hanging requests in Fastify, from identifying event loop blockage and missing next() calls to resolving database connection pool exhaustion.
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nodejsStopping the Freeze: Using Node.js Worker Threads for CPU-Heavy Tasks
Learn how to prevent Node.js server freezes by offloading CPU-intensive tasks to Worker Threads, ensuring your Event Loop remains responsive under heavy load.
SDL 2.0 Event Loop Mastery: Polling, Timers, and Low CPU
Learn how to build a responsive, low‑CPU SDL 2.0 event loop that blends polling and waiting, uses timers, and avoids threading pitfalls. Includes a concrete example and trade‑off analysis.
sdlSynchronous crypto.pbkdf2Sync vs. asynchronous crypto.pbkdf2 for handling concurrent requests in Node.js
Goal: Identify whether using the synchronous crypto.pbkdf2Sync function or its asynchronous counterpart crypto.pbkdf2 yields lower latency spikes when the server handles many concurrent requests. Constraint: The synchronous call blocks the Node.js event loop, causing all incoming requests to wait until the operation finishes, while the asynchronous call offl