== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 12:15:13 (1786032913)
old_iused=        448
 - open/close 284 (time 1786032932.71 total 10.03 last 28.32)
 - open/close 569 (time 1786032942.74 total 20.05 last 28.42)
 - open/close 920 (time 1786032952.75 total 30.07 last 35.05)
total: 1000 open/close in 32.66 seconds: 30.62 ops/second
suppose current old_iused=1448
create_count=32, max_create_count=20000
 - unlinked 0 (time 1786032971 ; total 0 ; last 0)
total: 1000 unlinks in 15 seconds: 66.666664 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