== sanity test 60c: unlink file when mds full ============ 08:51:35 (1788612695)
create 5000 files
 - open/close 505 (time 1788612710.03 total 10.02 last 50.42)
 - open/close 931 (time 1788612720.04 total 20.02 last 42.59)
 - open/close 1384 (time 1788612730.04 total 30.02 last 45.27)
 - open/close 1885 (time 1788612740.05 total 40.03 last 50.06)
 - open/close 2391 (time 1788612750.05 total 50.03 last 50.60)
 - open/close 2899 (time 1788612760.07 total 60.05 last 50.73)
 - open/close 3391 (time 1788612770.08 total 70.06 last 49.13)
 - open/close 3875 (time 1788612780.10 total 80.08 last 48.30)
 - open/close 4388 (time 1788612790.12 total 90.10 last 51.20)
 - open/close 4851 (time 1788612800.12 total 100.10 last 46.29)
total: 5000 open/close in 103.49 seconds: 48.31 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788612808 ; total 1 ; last 1)
total: 5000 unlinks in 70 seconds: 71.428574 unlinks/second
fail_loc=0