[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:39107"}},
{"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":189.751,"dur":57.251,"args":{"object":17753814253699073}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":247.002,"dur":897786.041,"args":{"object":17753814253699073,"queued_after_submit_us":14.041,"dispatch_wait_us":6.084,"settle_after_end_us":140.585}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]