About the Author & Notebook
About Henrik
I’m Henrik Lindqvist, an independent distributed systems architect based in Stockholm. Over the past fourteen years, I have built consensus engines, high-throughput NVMe storage layers, and edge WebAssembly runtimes across European infrastructure teams.
Kern Notes began in 2021 as a personal lab log for hardware measurements that were too detailed for conference slide decks and too practical for academic papers. Every Sunday morning, 64,000+ staff engineers, SREs, and technical founders read the weekly dispatch.
Everything published here follows three rules: measure real tail latencies on physical hardware, show exact kernel and compiler flags, and ship pages with zero tracking scripts or layout shifts.
“Abstractions save developer hours on Monday, while mechanical sympathy saves pager sleep on Saturday night.”
Editorial Philosophy
Four Quiet Obsessions
Mechanical Sympathy Over Abstraction Layers
Every framework promise eventually meets a physical NAND die plane, a kernel socket queue, or a CPU cache line. We read flame graphs before adding middleware.
Reproducible Numbers With Raw Scripts
Claims without workload distributions, hardware specs, and failure modes age poorly. Every benchmark essay includes exact kernel versions and p99.9 tails.
Zero-Bloat Native Web Standards
A technical publication should respect the reader's battery, keyboard focus, and braille display—zero ad scripts, zero layout shifts, and instant typography.
Calm Weekly Cadence
Published once every Sunday morning at 07:00 UTC from Stockholm. No daily hype cycles, no rewritten press releases, and full-text RSS forever.
What I’m working on now
Current lab benchmarks, open-source collectors, and advisory sprints from Södermalm.
- Drafting a three-part benchmark comparing `io_uring` registered buffers against DPDK user-space drivers on 100GbE links.
- Maintaining an open-source eBPF socket residency collector for Linux 6.8+ production clusters.
- Advising two European infrastructure teams on deterministic SQLite read-replica distribution at the edge.
- Testing modern CSS scroll-driven navigation patterns across VoiceOver, NVDA, and tactile braille displays.
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