Latency Ladder.
Order the numbers every engineer should know, L1 cache to a cross-continent round trip.
- ■ Five operations per ladder. Tap them fastest first.
- ■ +20 per rung in the right place, −10 per rung in the wrong place, +30 for a perfect ladder.
- ■ Score 260 in one round to clear it (guessing averages below zero).
- ■ As many ladders as you can in 90 seconds.
- ■ The numbers are the course's own table: orders of magnitude, not benchmarks.
clear at 260 · no best yet