[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:37013"}},
{"name":"thread_name","ph":"M","pid":1,"tid":1,"args":{"name":"running"}},
{"name":"thread_name","ph":"M","pid":1,"tid":2,"args":{"name":"waiting for inputs"}},
{"name":"inputs","ph":"X","pid":1,"tid":2,"ts":329.047,"dur":111.627,"args":{"object":13834833754910097409}},
{"name":"history::read_history(::String)","ph":"X","pid":1,"tid":1,"ts":440.674,"dur":525266.831,"args":{"object":13834833754910097409,"queued_after_submit_us":8.376,"dispatch_wait_us":7.833,"settle_after_end_us":228.629}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]