== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 00:33:10 (1788841990)
old_iused=448
 - open/close 681 (time 1788842005.13 total 10.00 last 68.09)
total: 1000 open/close in 14.47 seconds: 69.10 ops/second
suppose current old_iused=1448
create_count=32, max_create_count=20000
 - unlinked 0 (time 1788842017 ; total 0 ; last 0)
total: 1000 unlinks in 8 seconds: 125.000000 unlinks/second
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete
sleep 20 for ZFS MDS
440 
waited 1 sec, old Iused 1448, new Iused 440