frn.sh
Notes
- 1193 backends on WALWrite -
- A Node.js heap mystery -
- Investigating 108,725 forks -
- Betting a coffee on a socket leak -
- Sigterm a D state process -
About
Welcome! I’m Fernando. I like watching computers misbehave in production.
I try to keep the format loose. These are mostly war stories and lab notes. I also use this page to practice structured procrastination.
My current obsessions are databases, Linux, observability, and performance.
Internet gems I’ve collected: recursive forks, pthread dies, pathologically databases, disk random reads.
Papers, blog posts and videos I liked the most.