== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 04:37:50 (1789547870)
old_iused=445
total: 1000 open/close in 7.00 seconds: 142.90 ops/second
suppose current old_iused=1445
create_count=32, max_create_count=20000
 - unlinked 0 (time 1789547884 ; total 0 ; last 0)
total: 1000 unlinks in 4 seconds: 250.000000 unlinks/second
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete
sleep 20 for ZFS MDS
437 
waited 1 sec, old Iused 1445, new Iused 437