Inside one box

  • Order
  • Metal 02
  • Node

Difficulty 2 of 5

Six requests start at the same moment in one server. Rank them from first done to last done. Three cache levels, main memory, a local flash drive, and one small message over a 25 Gbit/s link through the rack switch to the next server.

Play level

Put these steps in order

  • Local flash drive read
  • Last-level cache hit
  • Message to the next server in the rack
  • First-level cache hit
  • Main memory read
  • Second-level cache hit
Where a read finds its dataDrag or use arrow keys to pick where the data lives

Goals and limits

p99 latency
under 0.2 ms
Monthly cost
under 1,000 USD/mo

Concepts

How players did

Player results load from the server.

All levels