[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:44555"}},
{"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":1000.381,"dur":109.376,"args":{"object":7027712187372142593}},
{"name":"history::read_history(::String)","ph":"X","pid":1,"tid":1,"ts":1109.757,"dur":459311.418,"args":{"object":7027712187372142593,"queued_after_submit_us":13.334,"dispatch_wait_us":7.708,"settle_after_end_us":217.251}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]