Origin shield

  • Tune
  • Cache 08

Difficulty 2 of 5

Forty edge locations each combine their own misses. At 0:20, one hot key expires at all 40 locations. Keep source CPU below 70 percent and p99 below 150 ms. Keep all 40 locations.

Play level

HTTP/2HTTP/2Users40,000 req/sCDNAPI server0.1 vCPU · 1 GB
HTTP/2HTTP/2Users40,000 req/sCDNAPI server0.1 vCPU · 1 GB
The board at the start of the level
Cache size and hit ratioDrag or use arrow keys to change the cache size

1,600 keys · hit 81% · mean 3.2 ms

Goals and limits

CPU use
under 70%
p99 latency
under 150 ms
Monthly cost
under 1,500 USD/mo
Traffic
40,000 req/s

Concepts

How players did

Player results load from the server.

All levels