[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:42827"}},
{"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":257.666,"dur":80.75,"args":{"object":6773969092937252865}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":338.416,"dur":1472399.526,"args":{"object":6773969092937252865,"queued_after_submit_us":26.75,"dispatch_wait_us":7.542,"settle_after_end_us":191.833}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]