== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 18:11:51 (1785881511)
old_iused=        447
 - open/close 501 (time 1785881529.91 total 10.01 last 50.06)
 - open/close 955 (time 1785881539.92 total 20.02 last 45.34)
total: 1000 open/close in 21.01 seconds: 47.60 ops/second
suppose current old_iused=1447
create_count=32, max_create_count=20000
 - unlinked 0 (time 1785881552 ; total 0 ; last 0)
total: 1000 unlinks in 11 seconds: 90.909088 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