[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:43335"}},
{"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":139.04,"dur":41.25,"args":{"object":1850936565895790593}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":180.29,"dur":1315968.703,"args":{"object":1850936565895790593,"queued_after_submit_us":8.542,"dispatch_wait_us":3.625,"settle_after_end_us":87.957}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]