starting vacuum...end.
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transaction type: <builtin: select only>
scaling factor: 1000
query mode: prepared
number of clients: 8
number of threads: 8
duration: 120 s
number of transactions actually processed: 30602342
latency average = 0.031 ms
latency stddev = 0.001 ms
tps = 255019.285101 (including connections establishing)
tps = 255023.975714 (excluding connections establishing)
