Fernando's Blog

Posts

Most of these are me trying to understand something that caught my interest, or to reproduce a production incident in a more controlled environment.

• 12 Jun, 2026 Tracing an 8kb Postgres read
• 03 Apr, 2026 What /proc sees in 19 MiB
• 21 Mar, 2026 Where did 400 MiB go?
• 11 Dec, 2025 108,725 forks
• 30 Oct, 2025 Breaking what a program is
• 08 Apr, 2025 Sigterm a D state process
• 15 Feb, 2024 The cost of not measuring