== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 01:15:59 (1786943759)
old_iused=        446
 - open/close 912 (time 1786943773.95 total 10.04 last 90.87)
total: 1000 open/close in 10.99 seconds: 91.01 ops/second
suppose current old_iused=1446
create_count=32, max_create_count=20000
 - unlinked 0 (time 1786943781 ; total 0 ; last 0)
total: 1000 unlinks in 6 seconds: 166.666672 unlinks/second
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete
sleep 20 for ZFS MDS
        438 
waited 1 sec, old Iused 1446, new Iused         438