== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 15:43:45 (1789069425)
old_iused=446
 - open/close 471 (time 1789069443.45 total 10.01 last 47.04)
 - open/close 962 (time 1789069453.46 total 20.03 last 49.04)
total: 1000 open/close in 20.76 seconds: 48.17 ops/second
suppose current old_iused=1446
create_count=32, max_create_count=20000
 - unlinked 0 (time 1789069463 ; total 0 ; last 0)
total: 1000 unlinks in 10 seconds: 100.000000 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