[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:32769"}},
{"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":210.417,"dur":82.792,"args":{"object":942648701887709185}},
{"name":"history::read_history(::String)","ph":"X","pid":1,"tid":1,"ts":293.209,"dur":614743.641,"args":{"object":942648701887709185,"queued_after_submit_us":7.334,"dispatch_wait_us":9.5,"settle_after_end_us":89.916}},
{"name":"process_name","ph":"M","pid":2,"tid":0,"args":{"name":"worker 127.0.0.1:39121"}},
{"name":"thread_name","ph":"M","pid":2,"tid":1,"args":{"name":"running"}},
{"name":"thread_name","ph":"M","pid":2,"tid":2,"args":{"name":"waiting for inputs"}},
{"name":"inputs","ph":"X","pid":2,"tid":2,"ts":295.167,"dur":50.542,"args":{"object":942648701887709186}},
{"name":"history::read_history(::String)","ph":"X","pid":2,"tid":1,"ts":345.709,"dur":633119.594,"args":{"object":942648701887709186,"queued_after_submit_us":1.875,"dispatch_wait_us":105.666,"settle_after_end_us":46.167}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]