== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 15:22:00 (1783970520)
old_iused=        448
 - open/close 918 (time 1783970535.96 total 10.01 last 91.75)
total: 1000 open/close in 10.95 seconds: 91.31 ops/second
suppose current old_iused=1448
create_count=32, max_create_count=20000
 - unlinked 0 (time 1783970544 ; total 0 ; last 0)
total: 1000 unlinks in 7 seconds: 142.857147 unlinks/second
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete
sleep 20 for ZFS MDS
        440 
waited 1 sec, old Iused 1448, new Iused         440