== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 20:20:19 (1781223619)
old_iused=        447
 - open/close 573 (time 1781223635.70 total 10.01 last 57.26)
total: 1000 open/close in 15.05 seconds: 66.47 ops/second
suppose current old_iused=1447
create_count=32, max_create_count=20000
 - unlinked 0 (time 1781223648 ; total 0 ; last 0)
total: 1000 unlinks in 6 seconds: 166.666672 unlinks/second
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete
sleep 20 for ZFS MDS
        439 
waited 1 sec, old Iused 1447, new Iused         439