== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 19:05:56 (1787871956)
old_iused=        447
 - open/close 615 (time 1787871971.10 total 10.01 last 61.46)
total: 1000 open/close in 14.91 seconds: 67.08 ops/second
suppose current old_iused=1447
create_count=32, max_create_count=20000
 - unlinked 0 (time 1787871984 ; 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
        439 
waited 1 sec, old Iused 1447, new Iused         439