Tokio Trace Viewer

Drop trace file to load Replaces the current trace
📊
Drop a `.bin` trace file here or click to open
Expects D9TF binary format
or load demo trace
Worst first
Spans
Task Detail
Queue Depth (global=blue, local max=orange)
Flamegraph
✕ Close (Esc)
Worker threads
Off-worker (sampler thread)
⚠ Scheduling Events
✕ Close (Esc)
×

### 🖱 Mouse

Scroll wheel | Zoom in/out (centered on cursor)
Drag | Pan left/right
Click poll | Select task & show wake timeline
⇧ Shift+drag | Select region → flamegraph / blocking calls
⌥ Option+drag | Select region → zoom to fit

### ⌨ Keyboard

Tab | Navigate between UI regions
↑ / ↓ | Zoom in / out
← / → | Pan left / right
Shift | Toggle region selection (analysis). Press once to start, ← → to extend, press again or Enter to confirm
Option / Alt | Toggle region selection (zoom). Press once to start, ← → to extend, press again or Enter to confirm
Esc | Cancel selection / close panels

Press Esc or click outside to close