Show HN: Speed Demon, we give you a slow program, you make it fast, any language

Aggregate 3.1M structured log lines into per-endpoint request counts, p50/p95/p99 latency, and error rates bucketed by hour.

The parsing track, and the one most teams should start with.

The naive version reads lines, splits on delimiters, parses timestamps with a date library, and pushes latencies into a growing list per endpoint before sorting each one at the end. Every part of that is a target.

239 MB · records 3.1M lines · reference 32.05 s · timeout 321 s

Three consecutive lines from the sample set, unmodified.