== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 00:49:00 (1788670140)
old_iused=445
 - open/close 627 (time 1788670154.60 total 10.00 last 62.68)
total: 1000 open/close in 15.60 seconds: 64.11 ops/second
suppose current old_iused=1445
create_count=32, max_create_count=20000
 - unlinked 0 (time 1788670167 ; 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
437 
waited 1 sec, old Iused 1445, new Iused 437