[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:39513"}},
{"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":148.483,"dur":43.921,"args":{"object":17005986917625364481}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":192.404,"dur":1511543.985,"args":{"object":17005986917625364481,"queued_after_submit_us":29.441,"dispatch_wait_us":4.04,"settle_after_end_us":143.522}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]