== sanity test 60c: unlink file when mds full ============ 13:15:42 (1743527742)
create 5000 files
 - open/close 1417 (time 1743527754.24 total 10.00 last 141.64)
 - open/close 2884 (time 1743527764.25 total 20.01 last 146.66)
 - open/close 4613 (time 1743527774.25 total 30.01 last 172.87)
total: 5000 open/close in 32.32 seconds: 154.71 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1743527777 ; total 0 ; last 0)
total: 5000 unlinks in 17 seconds: 294.117645 unlinks/second
fail_loc=0