== sanity test 311: disable OSP precreate, and unlink should destroy objs ========================================================== 02:12:39 (1786169559)
old_iused=        446
 - open/close 704 (time 1786169575.83 total 10.01 last 70.34)
total: 1000 open/close in 15.72 seconds: 63.59 ops/second
suppose current old_iused=1446
create_count=32, max_create_count=20000
 - unlinked 0 (time 1786169589 ; total 0 ; last 0)
total: 1000 unlinks in 9 seconds: 111.111115 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