C: ~1Gb
D: ~0.5Gb
E: ~27Gb

----------------
c:->nul, e:->nul
non-overlapped I/O

reorder:           Disabled     Enabled
scan:                5:00         4:30
copy E:->nul(5%):    8:10         8:00

----------------
c:->nul, e:->nul
overlapped I/O

reorder:           Disabled     Enabled
scan:              
copy E:->nul(5%):       

----------------
c:->nul, e:->nul, c:->e:, e:->c:
non-overlapped I/O

reorder:           Disabled     Enabled
scan:                6:50         5:00
copy E:->nul(2%):    7:20         8:30
copy E:->C:(2%):     7:20         8:30

----------------
c:->nul, e:->nul, c:->e:, e:->c:
non-overlapped I/O

reorder:           Disabled     Enabled
scan:                             6:00
copy E:->nul(3%):                13:30
copy E:->C:(3%):                 13:30

----------------

Action 20
Flags  10342