performance

2026

• Jul 20

  When Big-O Lies

  Asymptotic complexity is a promise about behavior at infinity. Most of my code never runs there — it runs at n = 4,000 on a Tuesday, and the constants I dropped are the whole story.

• Jun 30

  The Quiet Cost of a Fast Loop

  What branch prediction taught me about writing boring, predictable code on purpose.

• Apr 03

  The Profiler Is Always Right

  Every time I've argued with a profiler, I've been wrong. A short catalogue of my defeats.