Loopscan

Tool for monitoring shared event loops with Javascript

Current support

Renderer's Main Thread (with postMessage)
Renderer's Main Thread (with timers)
Host's I/O Thread (with fetch requests)
Host's I/O Thread (with workers)

Live demo

For a quick demo you simply visit this link and click "Start" :D

http://vwzq.net/lab/loopscan/

To Do

Add test case for the GPU process. Create timer with Worker and SharedArrayBuffer.