[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:36547"}},
{"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":323.503,"dur":111.917,"args":{"object":17825186851992895489}},
{"name":"history::read_history(::String)","ph":"X","pid":1,"tid":1,"ts":435.42,"dur":562761.17,"args":{"object":17825186851992895489,"queued_after_submit_us":11.417,"dispatch_wait_us":9.833,"settle_after_end_us":96.459}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]