== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 15:01:34 (1782759694)
old_iused=        448
 - open/close 801 (time 1782759709.33 total 10.00 last 80.09)
total: 1000 open/close in 12.48 seconds: 80.13 ops/second
suppose current old_iused=1448
create_count=32, max_create_count=20000
 - unlinked 0 (time 1782759719 ; total 0 ; last 0)
total: 1000 unlinks in 7 seconds: 142.857147 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