[
{"cat":"r","pid":1,"tid":1,"ts":50,"ph":"S","name":"A","args":{},"id":"1a"},
{"cat":"r","pid":1,"tid":1,"ts":100,"ph":"S","name":"B","args":{},"id":"1"},
{"cat":"r","pid":1,"tid":1,"ts":120,"ph":"B","name":"BE1","args":{}},
{"cat":"r","pid":1,"tid":1,"ts":150,"ph":"F","name":"D","args":{},"id":"bf1"},
{"cat":"r","pid":1,"tid":1,"ts":170,"ph":"E","name":"BE1","args":{}},
{"cat":"r","pid":1,"tid":1,"ts":200,"ph":"S","name":"B","args":{},"id":"2"},
{"cat":"r","pid":1,"tid":1,"ts":220,"ph":"B","name":"BE1","args":{}},
{"cat":"r","pid":1,"tid":1,"ts":230,"ph":"B","name":"BE2","args":{}},
{"cat":"r","pid":1,"tid":1,"ts":240,"ph":"T","name":"B","args":{"step":"X"},"id":"2"},
{"cat":"r","pid":1,"tid":1,"ts":250,"ph":"S","name":"A","args":{},"id":"2a"},
{"cat":"r","pid":1,"tid":1,"ts":270,"ph":"E","name":"BE2","args":{}},
{"cat":"r","pid":1,"tid":1,"ts":300,"ph":"F","name":"B","args":{},"id":"1"},
{"cat":"r","pid":1,"tid":1,"ts":350,"ph":"E","name":"BE1","args":{}},
{"cat":"r","pid":1,"tid":1,"ts":400,"ph":"F","name":"B","args":{},"id":"2"},
{"cat":"r","pid":3,"tid":4,"ts":450,"ph":"T","name":"A","args":{"step":"X"},"id":"2a"},
{"cat":"r","pid":3,"tid":4,"ts":475,"ph":"T","name":"A","args":{"step":"Y"},"id":"2a"},
{"cat":"r","pid":2,"tid":2,"ts":500,"ph":"S","name":"E","args":{},"id":"1"},
{"cat":"r","pid":2,"tid":3,"ts":600,"ph":"S","name":"E","args":{},"id":"2"},
{"cat":"r","pid":3,"tid":4,"ts":700,"ph":"F","name":"E","args":{},"id":"1"},
{"cat":"r","pid":1,"tid":1,"ts":725,"ph":"S","name":"D","args":{},"id":"bf2"},
{"cat":"r","pid":1,"tid":1,"ts":750,"ph":"F","name":"A","args":{},"id":"2a"},
{"cat":"r","pid":3,"tid":5,"ts":800,"ph":"F","name":"E","args":{},"id":"2"},
{"cat":"r","pid":1,"tid":1,"ts":900,"ph":"F","name":"A","args":{},"id":"1a"}
]