How to Open a 50GB Log File — and Reopen It in 0.05 Seconds. A klogg Alternative, Benchmarked
If you searched for a klogg alternative , you probably already know klogg is good. It is fast, it is free, it is open source, and it runs on Windows…
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WebSockets in React Server Components: Client Islands
Why you shouldn’t copy server state into a global store for realtime Hot take: when React Server Components (RSC) are your default, the worst thing…
Performance Engineering: What Is the System Waiting For?
When a request takes five seconds, the obvious question is what to make faster. The more useful question is what, precisely, the system spent those…
A Practical Core Web Vitals Checklist for Service Business Websites
Service websites often look simple but load like large applications. A hero video, several font files, tracking scripts, chat widgets, sliders, maps…
A Practical Guide to React Performance
React is fast by default, until it isn't. The good news is that the vast majority of real-world performance issues trace back to a small set of patt…
Replacing Algolia with an In-Memory Search in Next.js 14
The most satisfying commit of our migration off Contentful was the one that only deleted things. Out went the Algolia client, the sync route that pu…
Stop Thrashing Under Memory Pressure: Practical zram + systemd-oomd on Linux
Stop Thrashing Under Memory Pressure: Practical zram + systemd-oomd on Linux When a homelab box or small VPS runs out of free RAM, the failure mode…
Building a Ultra Aggressive Download, Streamer & Browser : Jenius Blitz #appdevelopment #browser #andriod #app
Every developer hits a point where they want to build something that pushes Android’s concurrency model to its limits. When standard single-stream…
My AI Refactor Was Slow. The Model Wasn't Guilty.
Everyone talks about what developers do while AI codes. Mostly, we wait. So I measured the waiting. The model was not guilty. For two weeks my workf…
Your Free AI Server Has a Ceiling. Measure It in 30 Minutes Before the Team Does
Tuesday, 10:47 AM. Fourteen developers open their IDE extensions at once, and the shared AI server starts returning timeouts. Nobody planned for the…
When batch traffic competes with interactive LLM requests
Not all LLM traffic is equally urgent. A user waiting for a response cares about the next few seconds, whereas a batch task summarizing thousands of…
Managing Slack and Discord Bot Webhooks Without Getting Rate-Limited
429 too many requests Discord API rate limiting strategy async chat bot architecture asynchronous event handling asynchronous webhook processing AWS…
Next.js Performance Optimization: Get 95+ PageSpeed Scores in 2025
Why Performance Matters More Than Ever Google's Core Web Vitals have been a ranking factor since 2021. But beyond rankings, performance is user expe…
How I Optimize a Browser Gaming Website for Performance
Running a browser gaming platform comes with a different set of performance challenges compared with a traditional content website. On BunaGames , i…
10 EF Core Performance Mistakes That Ship to Production
If your API is fast with seed data but slows down in production, EF Core is rarely the root cause. It is usually the amplifier. Most teams do not ha…
A 5ms Blocking Call Took My Service From 17,189 to 549 req/s
A 5 millisecond blocking call. Nobody would call that slow. It passes code review and looks fine in a trace. On a Tomcat worker thread, my service d…
The Audit's Blind Spot: I Weighed the Build, Not the Page
I published a post called "I Audited My Own Portfolio and Found 20 Problems" . It was an inventory: I went through my own site — a React 19 + Vite S…
Your local RAG isn't slow — it re-reads every document on every question
A user opens a project with nine files in it, types the most obvious question anyone types at a document app — "what are these documents about?" — a…
The sm_120 shared-memory cliff: why FP8 KV cache crashes vLLM on workstation Blackwell
If you run vLLM with --kv-cache-dtype fp8 on a DeepSeek-family (MLA) model and your GPU is a GB10, an RTX PRO 6000, or any workstation or consumer B…
How I Built a Bulk Image Converter That Runs Entirely in Your Browser
A few months ago, I needed to convert 400 product images from JPG to WebP for a Shopify store. I tried the usual online converters. Every single one…
Qwen3-8B on workstation Blackwell: vLLM vs SGLang vs llama.cpp, plus an FP8 pass
Benchmarks of the same model on the same GPU across three serving stacks, then an FP8 pass on the winner. All numbers measured on our own hardware l…
Vue's Vapor Mode Is Almost Here. Writing Browser Games With No Framework Taught Me Why It Matters
Vue 3.6 entered release-candidate stage in July, and with it Vapor Mode is finally feature-complete: single-file components that compile straight to…
The Slow Lane: Latency Engineering When Your AI Endpoint Is Free
Free model access solves the cost problem and creates a latency problem, and most teams measure the wrong number. My position is direct: the p95 of…
Your codex exec is wasting ~900 ms per turn. I measured where.
I spent a weekend rebuilding the JavaScript harness of OpenAI's Codex CLI on Bun. I expected a runtime story. I got an architecture story — and one…
We nearly published a 2x regression that didn't exist
We were about to ship a performance write-up claiming three queries had gotten 2-4x slower. All three numbers were wrong, and the reason is one ever…