Epoll vs. io_uring: I Benchmarked for 3 Nights and Found Naive io_uring Is Actually Slower
The Short Version: Don’t Rush to Replace epoll Our team recently hit a major IO model decision while rebuilding a gateway. I spent …
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vLLM Production Deployment: The Hard Lessons from PagedAttention Tuning to K8s Cluster Stress Testing
Why You Should Read This Last week our team had a production meltdown. A vLLM 0.6.x inference cluster saw P99 latency spike from 400ms to 8 …
BBC 198 kHz Long Wave Shutdown: Droitwich Transmitter Decommissioned, End of an Era in Radio Technology
The End of a Broadcast Era The Reddit thread on r/hypeurls titled “Long Wave radio era set to end with Droitwich switch-off” …
Prometheus Alerting Rules Setup Tutorial 2026: Production-Grade Configuration from Pitfalls to Best Practices
Prometheus alerting rules look simple on the surface. But I’ve seen too many teams write hundreds of rules that just create noise. Or …
HPE iLO 6 REST API Tutorial: From Redfish Rookie to Automation Ninja
Stop Clicking the Web UI. The iLO 6 REST API Is Where Real Productivity Lives I’m going to be blunt: if you’re still logging …
Gerrymandle Deep Dive: How I Crack the Daily Gerrymandering Puzzle with Algorithmic Thinking
Let me be honest — when I first stumbled upon Gerrymandle, my immediate thought was “great, another political gimmick dressed up as a …
DBOSify Deep Dive: Ditching Temporal Server for a Single Postgres Instance — Benchmarks, Pitfalls, and Migration Guide
I Was a Temporal Skeptic Until Our Infra Bill Hit $1200/Month Last month, I hit a wall. Our Temporal Server cluster was eating $800/month in …
Terraform Module Can't Access Files Outside Root? Fix Cross-Directory Path Hell Once and For All
The Symptom: Your Lambda Deployment Just Exploded Last Friday, 3 PM. I’m deploying a Lambda function. Directory structure looks like …
From Sticky Notes to Enterprise Vault: A 7-Person IT Team's Password Manager Journey
A few days ago on r/sysadmin, I saw a post that hit close to home. A sole IT ops guy at a 7-person company wrote: “Our company loves …
Rack Density Deep Dive: Lenovo ThinkSystem SR650 V3 vs Dell PowerEdge R660 Cooling Guide
Alright, let’s talk about the part of server selection that everyone glosses over until their ASHRAE compliance goes to hell: rack …