A single malloc took 7 milliseconds. So I deleted the slow path.
Every allocator benchmark leads with the median. malloc does 15M ops/sec, the typical call is 15 ns, ship it. The median never paged me at 3 a.m. The …
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The Deep Mechanics of Online Bulk Deletion in PostgreSQL
MVCC, WAL, vacuum, and replication slots under sustained delete load - and how to delete billions of rows without your database noticing Most "how to …
Why We Rebuilt Our Magento Checkout with React: Performance Results
Magento's default Luma checkout loads a heavy Knockout.js stack, dozens of RequireJS modules, and payment iframes that fight for the main thread. For …
Laravel `Bus::bulk()`: Faster Dispatch, Harder Queue Tradeoffs
Bus::bulk() is not a fancy alias for dispatch() in a loop, and it is definitely not a lighter Bus::batch() . In Laravel 13, it is a lower-level dispat…
How we cut INP from 480ms to under 200ms on a legacy site (no rewrite)
Most "make it faster" advice assumes you can rebuild. On real small-business sites — a clinic on WordPress, a retailer on a 2018 theme — you usually c…
A practical SQL query tuning playbook: execution plans, joins, indexes, and the traps
SQL tuning is the process of making a database query run faster and cheaper — cutting response time while minimizing the system resources it burns. He…
Why We Built a 100% Static Niche Directory for CAD/BIM Engineers (And How It Costs $0 to Run)
Finding the right software in specialized industries is surprisingly difficult. Take the CAD and BIM space: designers, architects, and engineering man…
DIFP Nostr: Fitting 6,000+ Products into a Single 64 KB Event
TL;DR — The DIFP protocol was designed to be data-compact and geo-aware from day one. We recently discovered it maps almost perfectly onto the Nostr e…
LLM Cost Optimization: Cut AI Inference Costs 47–80% Without Sacrificing Quality
Key Takeaways LLM API spending doubled from $3.5B to $8.4B in 2025 — most of the growth is from production deployments, not experiments Semantic cachi…
Building a 100% Client-Side HEIC to JPG Converter: Zero Servers, Zero Uploads
Every time I Airdrop photos from my iPhone to my Windows machine, I run into the same annoying problem: .heic files. They don’t open natively on most …
Build Cache Strategies: The Operational Burden of Speed
Build times, especially in enterprise software projects, are often an overlooked bottleneck that leads to significant inefficiencies. While working on…
I Ran 200+ Website Audits — Here's What's Actually Broken in 2026
Over the last few weeks I built a website audit tool and ran it on 200+ small business and service websites — dental practices, plumbing companies, la…
Cold Starts in Serverless
The Great Serverless Pause: Battling the "Cold Start" Beast Ever ordered a pizza and it took ages to arrive, leaving you ravenous and staring at an em…
Stop the Lag: Optimizing Heavy Browser-Based PDF Image Extraction
Browser-based PDF processing is a performance minefield. When you attempt to extract high-resolution images from a multi-page PDF document entirely on…
Building Blazing-Fast Ebook Converters: Debouncing, Chunking & Web Workers for Responsive UI
Responsive UIs for High-Throughput Ebook Converters: Debouncing, Chunking & Web Workers Ever tried to build a browser-based tool that processes la…
The Moment the Default Runtime Became the Payload
The Problem We Were Actually Solving Veltrix is a treasure-hunt engine that spawns thousands of ephemeral actors—each simulating a player moving throu…
The benchmark that made me change my mind about Jakarta EE in 2026
The first table made me uncomfortable: on my machine, with the lab’s realistic workload, Embedded GlassFish seemed to beat Spring Boot. If I had publi…
Edge-Cached Localhost Tunnels: How to Give Stakeholders a Production-Fast Preview Directly from Your IDE
IT InstaTunnel Team Published by our engineering team Edge-Cached Localhost Tunnels: How to Give Stakeholders a Production-Fast Preview Directly from …
Caching Layers in 2026: CDN, App, DB, Query: What Goes Where
Book: System Design Pocket Guide: Fundamentals — Core Building Blocks for Scalable Systems Also by me: Thinking in Go (2-book series) — Complete Guide…
no-cycle finds 0 cycles in next.js (and other lies caches tell you)
We benchmark import-next/no-cycle against eslint-plugin-import/no-cycle and oxlint's native Rust port on next.js (131K stars, 14,556 source files). Th…
Web performance beyond Core Web Vitals
Originally published at thatdevpro.com . Part of ThatDevPro's open SEO + AI framework library. ThatDevPro is an SDVOSB-certified veteran-owned web + A…
Why We Switched from React to HTMX in Production: A 200-Site Case Study
We ran a React SPA admin panel for almost three years. It worked. Customers logged in, edited content, published articles. Bundle size kept creeping u…
AI code review checklist that actually catches problems
The two a.m. pager call is a rite of passage for many engineers, but the nature of those incidents is starting to change. Picture this. You just finis…
I instrumented 95 DataLoaders in a production GraphQL API — here's what I found
DataLoader is the standard fix for GraphQL's N+1 query problem. Batch your database calls per request, cache within the request lifecycle, done. But o…
The Day PayPal Failed and the Rust Rewrite Saved the Product Launch
The Problem We Were Actually Solving Our digital art marketplace was designed around Stripes Checkout and PayPal Express. Both services gave us one-cl…
Embedding 685 million texts in 32 minutes
My embedding pipeline used to take many hours. I'd kick it off, go do other work, come back, find a problem in the output, fix it, run it again. A sin…
How I audit and prune unused Sanity document types to reclaim Studio performance
Why Studio performance degrades over time After two years on a client project, their Sanity Studio was loading 840 kB of JavaScript just to render the…
Why Browsers Outpaced Web Tooling (And How We Catch Up)
If you evaluate the technical capabilities of a modern web browser, you are essentially looking at a lightweight operating system. We have access to h…
5 Mistakes I Made Building a Social Media App With 7 AI Systems
I've spent the last nine months building Qioiper — a social media platform controlled by seven AI systems — alone. It works. It's live on Android. And…
Building KernelMind Part 3: Evaluation, Retrieval Ablations, RAGAS, and Turning The Project Into Something Measurable
By this point, KernelMind had already evolved far beyond the original “embeddings over code” idea. The system now had: AST-aware chunking fully qualif…