== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 20:26:40 (1786840000)
old_iused=        449
total: 1000 open/close in 2.93 seconds: 340.83 ops/second
suppose current old_iused=1449
create_count=32, max_create_count=20000
 - unlinked 0 (time 1786840007 ; total 0 ; last 0)
total: 1000 unlinks in 2 seconds: 500.000000 unlinks/second
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete
sleep 20 for ZFS MDS
        441 
waited 1 sec, old Iused 1449, new Iused         441