12 transactions (8 requested), each up to 2048 blocks
average: 
  0ms waiting for transaction
  0ms request delay
  3054ms running transaction
  0ms transaction was being locked
  0ms flushing data (in ordered mode)
  40ms logging transaction
  34111us average transaction commit time
  54 handles per transaction
  9 blocks per transaction
  11 logged blocks per transaction
