Simulation run on this device. Scenario values are not sent anywhere — the engine is fully local.
system design simulation · free
LSM Compaction Visualizer
Flush memtables, merge levels, and watch write amplification stack up.
Why do reads spike during compaction storms?
Engine 1.0.0 · simulation
1500
5
10
1.2
- Disk write MB/s
- 400
- Write amplification
- ×10
- Space amplification
- ×1.2
- Levels
- 5
Compaction trades write amp for read/space — watch disk budget.
ingest 40 → disk 400
Method
- Deterministic local model of the mechanism — knobs recompute outputs instantly with no network.
- Numbers are teaching approximations, not production capacity guarantees.