Hunting JavaScript memory leaks with V8 mechanics and Chrome DevTools
How V8 decides what stays alive, seven common leak patterns, and how to find the retaining path with Performance and heap snapshots.
Stuzhuk Lab — Chemistry of Code
Chemistry of Code
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Performance
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React Compiler: half the useMemos went, the useful ones stayed
A React 19 dashboard had 214 useMemo and useCallback calls. The compiler removed most of them; two edges stayed manual.
How much money a slow website loses: load speed and sales
Tie LCP, INP, and the funnel to revenue: major studies, a loss formula, an interactive calculator, A/B tests, and a performance budget for ecommerce.
Next.js 16 instead of WordPress: a Morocco store on mobile 4G
TripleW’s case: a 5,000-SKU catalog moved from WooCommerce to Next.js 16 — LCP from 3.8s to 680ms and CMI payments without PHP timeouts.
Three layers of an LLM stack: kernel, graph, and system
A map of large-language-model software: compute, memory, and communication, and which parallelism actually cuts latency.
How Turbopack chunks your JavaScript in Next.js
Single bundle vs many requests, chunk groups, and Next.js 16.3 experiments: smarter fetching, analytics-based merging, CJS tree-shaking, shared runtime.
The economics of data structures
There are no universally fast data structures. How to count storage, access, mutation, and movement costs — and pick a structure for the actual workload.
Cloudflare freed ~100 TB by reshaping the DNS cache
Five Rust layout changes in Big Pineapple cut per-entry memory 56% and sped inserts 43% for 1.1.1.1-scale DNS.
Gemma 4 26B on a 13-Year-Old Xeon: What CPU-Only AI Can Really Do
A Dev.to author reports running Gemma 4 26B on a Xeon E5 v2 without a GPU. Here are the requirements, claims, and caveats.
Zero-JS was not enough: edge-caching SSR HTML on Cloudflare Workers
How the author stabilized Core Web Vitals after dropping React: Cache API, cookie-gated HTML, removing Zod from the browser, and refactoring Astro forms.
Why EAV Looks Like a Good Idea — Then Destroys ERP Performance
Entity–Attribute–Value looks perfect at the start: flexibility without migrations. Why JOINs, indexes, and reports break ERP years later — and where EAV fits, and where it does not.
Evolution of Image Formats: From BMP to AVIF — A Developer's Complete Guide
History and practice: BMP, GIF, JPEG, PNG, WebP, HEIC, AVIF, and JPEG XL. How compression works, what to pick in 2026, and how to serve images without hurting LCP.
Database Optimization: Six Strategies That Cut Query Time by 60%
Profiling, indexes, ORM refactors, materialized views, connection pooling, and cache — a practical PostgreSQL and MySQL guide.
JavaScript performance: 8 fixes that actually matter in 2026
Measure first, then optimize: debounce, lazy load, Web Workers, bundle diet, and a quick-wins checklist.
Near-instant Next.js: a practical App Router checklist
Server Components by default, less client JS, next/image, no CLS, caching, next/script, and measuring on throttled mobile—not your laptop.
SPECTRA: synthetic IR collections to stress-test search before human labels
arXiv preprint: reproducible corpus generator up to 60k docs — near-linear speed, controlled distractors, BM25 nDCG@10 drops from 1.00 to 0.43 as noise grows.
Fast Client-Side Puzzle Solvers with Next.js and Web Workers
Next.js static export, Web Workers for heavy algorithms, bitboards for Block Blast, trie for word search — $0 hosting.
Shrinking a 3 GB SQLite dictionary to ~10 MB with an FST
The tsk case: finite state transducers in Rust, shared Finnish suffixes, and why SQLite FTS was only a stepping stone.