System Design Playgroundv2 · drag · wire · stress-test
rps
KB
80%
Drag a component onto the canvas
The Client has two outputs — Read & Write — scaled by the Reads slider.
Drag from a node's right port to wire flow. Click an edge to set its traffic split.
Set the load, hit 10× to stress it, or load a preset.
System metrics
Inspector
Select a component to tune its properties. Each models real-ish capacity, latency & cost so you can see where a design breaks.