← Wednesday, October 7, 2026Performance & OSGuide

Microbenchmarks around 300 ms balance stable timings with fast iteration

matklad.github.io Editor score 7/10

The suggested target avoids fixed overheads that can skew very short runs while keeping repeated measurements quick and easy to compare. It offers a practical baseline for performance work where robust measurements matter.

What

A microbenchmark rule of thumb is to tune input size until a run takes about 300 milliseconds.

How

Very short runs risk fixed-cost skew, while runs over a second slow iteration; hundreds of milliseconds are also perceptible to people.

Why it matters

This duration supports quick repeated comparisons while helping engineers use timing intuition during optimization.

Read on matklad.github.io → Hacker News · 45 comments

Headline, summary, brief and diagram are written by a model from the source's own text; the link, byline and numbers come from the source. Read the original before relying on a claim.