[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:34799"}},
{"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":107.751,"dur":31.542,"args":{"object":14345163280849305601}},
{"name":"history::read_history(::String)","ph":"X","pid":1,"tid":1,"ts":139.293,"dur":2036536.171,"args":{"object":14345163280849305601,"queued_after_submit_us":5.875,"dispatch_wait_us":2.834,"settle_after_end_us":292.96}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]