Timeline:
start_time (diff_time_with_previous) tree_structure
  0.00000 (  0.00002) Total
  0.00002 (  0.00002) -start
  0.00004 (  0.00002) -Logging Request
  0.00005 (  0.04068) --Creating fhnet PDO...
  0.04074 (  0.00004) --fhnet PDO created
  0.04077 (  0.02464) --Statement created
  0.06541 (  0.00000) --Statement executed
Logging Request       -0.06540
  0.31693 (  0.00000) -finish
Total                 0.31695