1[ 2{"cat":"r","pid":1,"tid":1,"ts":50,"ph":"S","name":"A","args":{},"id":"1a"}, 3{"cat":"r","pid":1,"tid":1,"ts":100,"ph":"S","name":"B","args":{},"id":"1"}, 4{"cat":"r","pid":1,"tid":1,"ts":120,"ph":"B","name":"BE1","args":{}}, 5{"cat":"r","pid":1,"tid":1,"ts":150,"ph":"F","name":"D","args":{},"id":"bf1"}, 6{"cat":"r","pid":1,"tid":1,"ts":170,"ph":"E","name":"BE1","args":{}}, 7{"cat":"r","pid":1,"tid":1,"ts":200,"ph":"S","name":"B","args":{},"id":"2"}, 8{"cat":"r","pid":1,"tid":1,"ts":220,"ph":"B","name":"BE1","args":{}}, 9{"cat":"r","pid":1,"tid":1,"ts":230,"ph":"B","name":"BE2","args":{}}, 10{"cat":"r","pid":1,"tid":1,"ts":240,"ph":"T","name":"B","args":{"step":"X"},"id":"2"}, 11{"cat":"r","pid":1,"tid":1,"ts":250,"ph":"S","name":"A","args":{},"id":"2a"}, 12{"cat":"r","pid":1,"tid":1,"ts":270,"ph":"E","name":"BE2","args":{}}, 13{"cat":"r","pid":1,"tid":1,"ts":300,"ph":"F","name":"B","args":{},"id":"1"}, 14{"cat":"r","pid":1,"tid":1,"ts":350,"ph":"E","name":"BE1","args":{}}, 15{"cat":"r","pid":1,"tid":1,"ts":400,"ph":"F","name":"B","args":{},"id":"2"}, 16{"cat":"r","pid":3,"tid":4,"ts":450,"ph":"T","name":"A","args":{"step":"X"},"id":"2a"}, 17{"cat":"r","pid":3,"tid":4,"ts":475,"ph":"T","name":"A","args":{"step":"Y"},"id":"2a"}, 18{"cat":"r","pid":2,"tid":2,"ts":500,"ph":"S","name":"E","args":{},"id":"1"}, 19{"cat":"r","pid":2,"tid":3,"ts":600,"ph":"S","name":"E","args":{},"id":"2"}, 20{"cat":"r","pid":3,"tid":4,"ts":700,"ph":"F","name":"E","args":{},"id":"1"}, 21{"cat":"r","pid":1,"tid":1,"ts":725,"ph":"S","name":"D","args":{},"id":"bf2"}, 22{"cat":"r","pid":1,"tid":1,"ts":750,"ph":"F","name":"A","args":{},"id":"2a"}, 23{"cat":"r","pid":3,"tid":5,"ts":800,"ph":"F","name":"E","args":{},"id":"2"}, 24{"cat":"r","pid":1,"tid":1,"ts":900,"ph":"F","name":"A","args":{},"id":"1a"} 25] 26