#performance

Conflict detection for requirements needs a formal substrate that can update after small repository changes without rechecking the whole repository. This post proposes a restricted Datalog model, uses OPAM package metadata as a concrete benchmark, and reports a FlowLog run where incremental commits took 0.89 ms at p50 while batch recomputation took 783.6 ms at p50 over the same 30-commit window.

Server-side rendering (SSR) can help improve core web vitals and is essential for SEO. React and node.js are often used to server-side render web pages. However, under high concurrency, rendering complex web pages may increase memory consumption and cause the application to crash if memory allocation fails. This post explores the following topics:

• Measuring node.js memory consumption as increasingly complex web pages are rendered with React.
• Measuring node.js memory consumption and throughput when serving HTML pages in an HTTP server.
• Limiting node.js concurrency with haproxy.

Update 2022-11-11: Please check out the article Optimizing SSR Memory Usage on wolt.com, which discusses the topic more thoroughly.