== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 09:46:34 (1789134394)
old_iused=        448
 - open/close 640 (time 1789134410.20 total 10.00 last 63.97)
total: 1000 open/close in 16.38 seconds: 61.03 ops/second
suppose current old_iused=1448
create_count=32, max_create_count=20000
 - unlinked 0 (time 1789134426 ; 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
        440 
waited 1 sec, old Iused 1448, new Iused         440