== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 02:00:33 (1789020033)
old_iused=445
 - open/close 615 (time 1789020048.92 total 10.01 last 61.44)
total: 1000 open/close in 14.89 seconds: 67.17 ops/second
suppose current old_iused=1445
create_count=32, max_create_count=20000
 - unlinked 0 (time 1789020064 ; 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
437 
waited 1 sec, old Iused 1445, new Iused 437