[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:42639"}},
{"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":186.21,"dur":62.292,"args":{"object":7992889882512982017}},
{"name":"history::read_history(::String)","ph":"X","pid":1,"tid":1,"ts":248.502,"dur":500073.235,"args":{"object":7992889882512982017,"queued_after_submit_us":14.209,"dispatch_wait_us":18.708,"settle_after_end_us":105.917}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]
