== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 16:35:56 (1786566956)
old_iused=        447
total: 1000 open/close in 7.34 seconds: 136.20 ops/second
suppose current old_iused=1447
create_count=32, max_create_count=20000
 - unlinked 0 (time 1786566973 ; total 0 ; last 0)
total: 1000 unlinks in 15 seconds: 66.666664 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