North Harbour Labs

Notes

Short write-ups. Most run under two pages.

August 2026

On reporting intervals

Why a fixed sampling interval flatters slow processes and penalises bursty ones.

June 2026

Baselines that drift

Comparison baselines that quietly move, and a cheap check that catches most cases.

March 2026

Small-sample intervals in practice

What we do when the sample is too small for the recommended method.

January 2026

Counting things twice

A taxonomy of double-counting we keep running into, and how each one shows up.