[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:33899"}},
{"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":258.709,"dur":124.876,"args":{"object":14040519395118153729}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":383.585,"dur":783476.808,"args":{"object":14040519395118153729,"queued_after_submit_us":23.291,"dispatch_wait_us":7.417,"settle_after_end_us":165.667}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]