[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:43021"}},
{"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":213.459,"dur":56.791,"args":{"object":4370758831525855233}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":270.25,"dur":1382812.179,"args":{"object":4370758831525855233,"queued_after_submit_us":24.792,"dispatch_wait_us":7.125,"settle_after_end_us":238.876}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]