== sanity test 60c: unlink file when mds full ============ 08:23:06 (1789302186)
create 5000 files
 - open/close 592 (time 1789302201.39 total 10.01 last 59.12)
 - open/close 1309 (time 1789302211.39 total 20.01 last 71.69)
 - open/close 1881 (time 1789302221.40 total 30.02 last 57.20)
 - open/close 2481 (time 1789302231.40 total 40.02 last 59.98)
 - open/close 3080 (time 1789302241.40 total 50.02 last 59.86)
 - open/close 3698 (time 1789302251.42 total 60.04 last 61.69)
 - open/close 4246 (time 1789302261.43 total 70.05 last 54.77)
 - open/close 4843 (time 1789302271.43 total 80.05 last 59.68)
total: 5000 open/close in 82.75 seconds: 60.42 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789302278 ; total 0 ; last 0)
total: 5000 unlinks in 57 seconds: 87.719299 unlinks/second
fail_loc=0