[
{"name":"process_name","ph":"M","pid":1,"tid":0,"args":{"name":"worker 127.0.0.1:38931"}},
{"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":254.459,"dur":79.084,"args":{"object":1446424039013744642}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":1,"tid":1,"ts":333.543,"dur":1680223.689,"args":{"object":1446424039013744642,"queued_after_submit_us":0.833,"dispatch_wait_us":55.25,"settle_after_end_us":110.542}},
{"name":"process_name","ph":"M","pid":2,"tid":0,"args":{"name":"worker 127.0.0.1:45897"}},
{"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":305.834,"dur":96.709,"args":{"object":1446424039013744643}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":2,"tid":1,"ts":402.543,"dur":1954008.587,"args":{"object":1446424039013744643,"queued_after_submit_us":0.625,"dispatch_wait_us":81.208,"settle_after_end_us":158.458}},
{"name":"process_name","ph":"M","pid":3,"tid":0,"args":{"name":"worker 127.0.0.1:44843"}},
{"name":"thread_name","ph":"M","pid":3,"tid":1,"args":{"name":"running"}},
{"name":"thread_name","ph":"M","pid":3,"tid":2,"args":{"name":"waiting for inputs"}},
{"name":"inputs","ph":"X","pid":3,"tid":2,"ts":252.376,"dur":103.167,"args":{"object":1446424039013744641}},
{"name":"headversion::read_head_version(::String)","ph":"X","pid":3,"tid":1,"ts":355.543,"dur":2685085.275,"args":{"object":1446424039013744641,"queued_after_submit_us":45.667,"dispatch_wait_us":9.166,"settle_after_end_us":158.459}},
{"name":"end","ph":"i","ts":0,"pid":0,"tid":0,"s":"g"}
]