Case studies.
Long-form write-ups once the work is done: the problem, the wrong turns, the fix, and what it taught me.
Nine Copies of Every Write
My Kubernetes control plane had been running five times slower than etcd considers healthy for over a year. I spent two hours blaming Ceph recovery throttles, caused an outage proving it, and then found…
Agents & AI · Cloud & InfrastructureTwo Cards, One Model, and the Ethernet Between Them
Pooling two Tesla T40s under llama.cpp's RPC backend bought a quarter-million-token context window on hardware I own — and cost half the generation speed, because every single token had to round-trip over plain TCP…
Cloud & InfrastructureThe Felt Experience of a Well-Tuned Network
Most networks are utilities. A few are tools. The difference is whether you can feel the friction every time information passes through. You spend eight hours a day inside your network. More, if you…
Cloud & InfrastructureResearch Lab Infrastructure Modernization
Executive Summary Faced with 10‑year‑old Ivy Bridge servers, fragmented GPUs, and mounting energy bills, the lab launched a six‑month modernization from January to June 2025. The goals were to: Key results: Key metric Early 2025 June 2025 Δ Idle rack draw…
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