Simulation run on this device. Scenario values are not sent anywhere — the engine is fully local.
system design simulation · free
B+ Tree Index Playground
Insert, split, and look up in a live B+ tree drawing.
How many pages does a point lookup touch?
Engine 1.0.0 · simulation
1010000000
4512
KiB
464
- Tree height
- 3
- Leaf pages (est.)
- 10000
- I/Os per point lookup
- ~3
- Page
- 8 KiB
Higher fanout shortens height — classic B+Tree win for disks/SSDs.
n=1000000 order=100 → height 3
Method
- Deterministic local model of the mechanism — knobs recompute outputs instantly with no network.
- Numbers are teaching approximations, not production capacity guarantees.