[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:41671"}},
{"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":2031.078,"dur":2185.161,"args":{"object":6290632577459945473}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":4216.239,"dur":3193130.946,"args":{"object":6290632577459945473,"queued_after_submit_us":30.041,"dispatch_wait_us":12.36,"settle_after_end_us":139.362}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]