Tech Articles
Curated developer articles, tutorials, and guides – auto-updated hourly
Self-Correcting Systems1d ago • 14 min read
I Was About to Optimize Five Canvases. Two of Them Weren't Running.
This is a submission for DEV's Summer Bug Smash: Clear the Lineup powered by Sentry. Existing...
#devchallenge#bugsmash#webdev#performance
18 2
yyj-dev5d ago • 6 min read
The Color Math Was Never the Slow Part
The first version of my image-to-Minecraft-blocks converter locked up the browser tab for long enoug...
#javascript#webdev#performance#showdev
2 1
OzmaKa6d ago • 3 min read
Static Analysis Told Me My React App Had a Problem. Runtime Profiling Told Me Which One
You open Lighthouse. Score isn't great! You open React DevTools. Components are re-rendering, a...
#react#opensource#performance#javascript
3 0
Collabier3d ago • 3 min read
Why your next web app probably doesn't need a backend
For the last decade, web development has followed a predictable pattern: User clicks a button →...
#javascript#nextjs#webdev#performance
1 0
INTFRAME4d ago • 2 min read
Write prompts for the cache, not the reader
Prefix caching bills repeated tokens at a fraction of the price. Once you know that, prompt layout s...
#ai#llm#performance
1 1
Michał Piszczek2d ago • 11 min read
Qwen3.8 27B at 256K: 50 TPS on a 24 GB GPU
The quantized model from this write-up is public on Hugging Face:...
#aiinfrastructure#llm#cuda#performance
1 1
Khaled Hani3d ago • 9 min read
How We Increased Shannon Entropy Throughput in Go by 41% Using a Lookup Table.
How We Increased Shannon Entropy Throughput in Go by 41% Using a Lookup Table. Author: Khaled...
#go#performance#security#devops
6 0
INTFRAME4d ago • 2 min read
Small models where they win
A frontier model labels the dataset once. A small model serves the traffic forever. A confidence rou...
#ai#llm#performance
0 0
Christoph Dieck2d ago • 5 min read
From 7MB to 52KB: My WebAssembly Size Optimization Journey
The problem I built an HTML-to-Markdown converter that runs entirely in the browser via...
#webassembly#rust#performance#optimization
3 2
Gabriele Pieretti2d ago • 5 min read
The GPU that says yes and does nothing: debugging real-time hair segmentation on mid-range Android
We build a virtual mirror for hair salons: a tablet camera feed where the customer's hair changes...
#webgl#performance#machinelearning#android
1 0
Nitish Anand4d ago • 5 min read
78 seconds to 2: the covering index that fixed our slowest page
This is a submission for DEV's Summer Bug Smash: Smash Stories powered by Sentry. The...
#performance#rails#bugsmash#programming
0 0
nicolas.vbgh6d ago • 12 min read
Faster Bulk Inserts in PostgreSQL
Two tables. band, and song pointing at it with a foreign key. Four tracks to an EP, twenty million.....
#postgres#database#performance#python
1 2
Sebastian Cabarcas8h ago • 5 min read
Migrating from spatie/laravel-permission to Redis: A Production Playbook
spatie/laravel-permission is the de facto standard for roles and permissions in Laravel, and for mos...
#laravel#php#redis#performance
1 0
Martin Hicks6d ago • 6 min read
What a write to an indexed DynamoDB table costs
What a write to a DynamoDB table carrying GSIs and LSIs actually costs, measured against real Dynamo...
#dynamodb#aws#performance#testing
0 0
bunzzeok1d ago • 5 min read
I Built the Same Commerce App in Kudzu, Astro, React Router, TanStack Start, and Next.js
In my previous post, I introduced Kudzu, a compiler-first framework that turns a statically...
#webdev#javascript#react#performance
0 0
Nayan Kyada1d ago • 4 min read
Next.js in 2026: honest practitioner take on what's working and what isn't
Next.js in 2026 is more capable than ever — and more complicated. A practitioner's view on RSC, PPR,...
#nextjs#approuter#performance#isr
1 0
websilvercraft5d ago • 3 min read
The Python GIL, explained without the hand-waving
Every Python developer eventually hits this conversation: "Just use threads to speed it...
#python#concurrency#performance#programming
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Hubert Larose Surprenant7h ago • 5 min read
I built a unified context gateway for AI agents that syncs in ~12ms. Here is how it works.
If you were building autonomous workflows, you were probably suffering from "framework...
#agents#ai#mcp#performance
0 0
Neeraj Singhi4d ago • 6 min read
eBPF-Powered Request Tracing in Go Microservices Without Instrumentation Tax
How eBPF uprobes and ring buffers replace manual trace propagation in Go services—mechanics, tradeof...
#architecture#go#microservices#performance
0 0
Mohammad Fikri1d ago • 7 min read
Why Go's encoding/csv Burns 540MB on 5M Rows (and How I Fixed It)
TL;DR: Go's built-in encoding/csv.Read() allocates string slices and strings for every single row,.....
#go#performance#backend#programming
0 0
Zenith Walls1d ago • 6 min read
How We Optimized Next.js 15 for 70,000+ High-Res 4K Wallpapers (Without Melting the Edge)
When we set out to build Zenith Walls, we made a promise: we were going to serve pristine,...
#nextjs#react#webperf#performance
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Aditya Agarwal2d ago • 3 min read
Virtual threads didn't scale your app. They just moved the crash to your database.
When Java 21 was released with virtual threads, everyone celebrated, including myself. Then...
#java#performance#database#concurrency
3 1
Andréas Bodin4d ago • 3 min read
Measuring the real concurrency ceiling of an LLM agent runner
I wanted to raise the concurrency limits on my local AI agent runner. The UI now supports multiple.....
#ai#llm#performance#devops
0 1
Simon1d ago • 7 min read
How big is an component really? I measured it 3 ways and got 3 answers
I wanted honest bundle sizes for my UI library and found out most size numbers are measured wrong......
#angular#webdev#performance#typescript
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