== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 09:00:34 (1787662834)
old_iused=        446
 - open/close 619 (time 1787662849.77 total 10.02 last 61.76)
total: 1000 open/close in 15.97 seconds: 62.60 ops/second
suppose current old_iused=1446
create_count=32, max_create_count=20000
 - unlinked 0 (time 1787662863 ; total 0 ; last 0)
total: 1000 unlinks in 9 seconds: 111.111115 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