== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 20:25:43 (1789604743)
old_iused=446
 - open/close 844 (time 1789604759.51 total 10.01 last 84.33)
total: 1000 open/close in 12.42 seconds: 80.54 ops/second
suppose current old_iused=1446
create_count=32, max_create_count=20000
 - unlinked 0 (time 1789604770 ; total 0 ; last 0)
total: 1000 unlinks in 8 seconds: 125.000000 unlinks/second
sleep 5 for ZFS MDS
sleep 5 for ZFS OST
Waiting for MDT destroys to complete
sleep 20 for ZFS MDS
438 
waited 1 sec, old Iused 1446, new Iused 438