== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 05:35:58 (1787909758)
old_iused=447
 - open/close 460 (time 1787909775.66 total 10.00 last 45.98)
 - open/close 950 (time 1787909785.69 total 20.03 last 48.86)
total: 1000 open/close in 21.06 seconds: 47.48 ops/second
suppose current old_iused=1447
create_count=32, max_create_count=20000
 - unlinked 0 (time 1787909798 ; 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