YouTube System Design Simulator

Interact with chunk uploads, concurrent transcoding, HLS/DASH streaming, and view count micro-batches.

t = 0.0s

Speed Seed

Scenario Presets

Transcoding Threads 4

CDN Cache Capacity 20

Viewer Bandwidth 15 Mbps

Spark Batch Interval 5s

Video Data (Upload/Stream) Control Request / Miss View Events Database Update Control Path

Transcoding Lag

0 tasks

Upload Throughput

0.0 MB/s

CDN Hit Ratio

100.0%

Buffer Health

0.0s

Aggregate Views

120,500

View Batch Delay

0.0s

Entity	Status	Load / Metrics

Tip

Click a component node on the canvas to pin details.

Interaction

Drag nodes on the canvas to change layout; zoom with + / - buttons.