== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 10:05:50 (1781618750)
old_iused=        449
 - open/close 674 (time 1781618765.54 total 10.01 last 67.35)
total: 1000 open/close in 14.50 seconds: 68.94 ops/second
suppose current old_iused=1449
create_count=32, max_create_count=20000
 - unlinked 0 (time 1781618776 ; total 0 ; last 0)
total: 1000 unlinks in 11 seconds: 90.909088 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