§02.09 — Lab Playground
LatencyCanvas
A frame-pacing visualizer drawing your real input → pixel latency. Every dot is one frame, colored by jank.
Tech
Performance · 2027
Status
Live
Renderer
WebGL2 / fallback
Updated
MMXXVII
Live · move the cursor
Performance · 202760 fps target
◊ Brief
Each dot is one frame of input → pixel latency. Color encodes jank: green = good, red = a missed frame.
- sample rate60Hz
- window12s
- target16.6ms
- threshold33ms
§README
- §01Useful for hunting down the source of jank in motion-heavy pages.
- §02Hold ⇧ to overlay GPU memory; hold ⌥ to overlay heap size (Chrome only).