[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:38103"}},
{"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":338.127,"dur":125.001,"args":{"object":174849836607078401}},
{"name":"history::read_history(::String)","ph":"X","pid":1,"tid":1,"ts":463.128,"dur":537247.434,"args":{"object":174849836607078401,"queued_after_submit_us":12.041,"dispatch_wait_us":7.625,"settle_after_end_us":172.001}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]
