[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:33385"}},
{"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":227.918,"dur":74.667,"args":{"object":1483069662055890945}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":302.585,"dur":2103355.4,"args":{"object":1483069662055890945,"queued_after_submit_us":22.917,"dispatch_wait_us":7.458,"settle_after_end_us":180.626}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]