Node.js Event Loop: Architecture, Patterns, and Performance
A deep dive into the Node.js event loop, covering phases, microtasks, and practical patterns for scalable servers.
A deep dive into the Node.js event loop, covering phases, microtasks, and practical patterns for scalable servers.
Maglev is V8’s mid-tier JIT compiler sitting between Sparkplug and TurboFan. It uses speculative type feedback and SSA-based IR to compile hot functions quickly while preserving most of TurboFan’s optimization headroom.
Trace a JavaScript function from parsed bytecode all the way through TurboFan’s Sea of Nodes IR, speculative optimizations, and final machine code emission, with the concrete phase ordering V8 actually uses.
How TurboFan turns hot JavaScript into optimized machine code using speculation, Sea of Nodes IR, and feedback-driven inlining — and why it has to bail out so often.
Introduction Axios has become the de‑facto HTTP client for JavaScript developers, whether they are building single‑page applications (SPAs), server‑side services with Node.js, or even hybrid mobile apps. Its promise‑based API, automatic JSON transformation, and rich interceptor system make it a pleasure to work with. However, as applications scale—handling hundreds or thousands of concurrent requests, streaming large payloads, or operating under strict latency budgets—raw convenience is no longer enough. Performance considerations that are often overlooked in early prototypes become bottlenecks that directly impact user experience and operational costs. ...