== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 03:15:01 (1789024501)
old_iused=446
 - open/close 934 (time 1789024516.10 total 10.00 last 93.40)
total: 1000 open/close in 10.80 seconds: 92.57 ops/second
suppose current old_iused=1446
create_count=32, max_create_count=20000
 - unlinked 0 (time 1789024523 ; total 0 ; last 0)
total: 1000 unlinks in 8 seconds: 125.000000 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