== sanity test 60c: unlink file when mds full ============ 14:36:52 (1789583812)
create 5000 files
 - open/close 444 (time 1789583827.22 total 10.02 last 44.32)
 - open/close 900 (time 1789583837.22 total 20.02 last 45.60)
 - open/close 1389 (time 1789583847.23 total 30.03 last 48.82)
 - open/close 1854 (time 1789583857.24 total 40.04 last 46.45)
 - open/close 2338 (time 1789583867.26 total 50.06 last 48.31)
 - open/close 2775 (time 1789583877.28 total 60.08 last 43.63)
 - open/close 3230 (time 1789583887.29 total 70.09 last 45.45)
 - open/close 3716 (time 1789583897.29 total 80.09 last 48.58)
 - open/close 4168 (time 1789583907.31 total 90.12 last 45.10)
 - open/close 4636 (time 1789583917.32 total 100.12 last 46.79)
total: 5000 open/close in 108.12 seconds: 46.25 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789583929 ; total 0 ; last 0)
total: 5000 unlinks in 79 seconds: 63.291138 unlinks/second
fail_loc=0