== sanity test 60c: unlink file when mds full ============ 01:20:34 (1787548834)
create 5000 files
 - open/close 513 (time 1787548848.93 total 10.01 last 51.23)
 - open/close 1026 (time 1787548858.95 total 20.02 last 51.24)
 - open/close 1503 (time 1787548868.97 total 30.05 last 47.57)
 - open/close 1943 (time 1787548878.97 total 40.05 last 44.00)
 - open/close 2310 (time 1787548888.98 total 50.06 last 36.68)
 - open/close 2615 (time 1787548899.01 total 60.09 last 30.41)
 - open/close 2962 (time 1787548909.01 total 70.09 last 34.68)
 - open/close 3396 (time 1787548919.04 total 80.12 last 43.30)
 - open/close 3775 (time 1787548929.06 total 90.14 last 37.82)
 - open/close 4090 (time 1787548939.08 total 100.16 last 31.43)
 - open/close 4339 (time 1787548949.38 total 110.46 last 24.18)
 - open/close 4667 (time 1787548959.39 total 120.46 last 32.77)
total: 5000 open/close in 128.31 seconds: 38.97 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787548972 ; total 0 ; last 0)
total: 5000 unlinks in 77 seconds: 64.935066 unlinks/second
fail_loc=0