== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 00:49:25 (1781239765)
old_iused=        447
 - open/close 658 (time 1781239781.07 total 10.01 last 65.76)
total: 1000 open/close in 14.81 seconds: 67.50 ops/second
suppose current old_iused=1447
create_count=32, max_create_count=20000
 - unlinked 0 (time 1781239794 ; total 0 ; last 0)
total: 1000 unlinks in 8 seconds: 125.000000 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