== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 00:58:45 (1790744325)
old_iused=447
 - open/close 661 (time 1790744340.71 total 10.01 last 66.03)
total: 1000 open/close in 14.90 seconds: 67.12 ops/second
suppose current old_iused=1447
create_count=32, max_create_count=20000
 - unlinked 0 (time 1790744354 ; 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