== sanity test 60c: unlink file when mds full ============ 04:56:39 (1789635399)
create 5000 files
 - open/close 390 (time 1789635415.63 total 10.01 last 38.96)
 - open/close 820 (time 1789635425.65 total 20.03 last 42.92)
 - open/close 1372 (time 1789635435.67 total 30.04 last 55.13)
 - open/close 1906 (time 1789635445.67 total 40.05 last 53.39)
 - open/close 2405 (time 1789635455.68 total 50.06 last 49.83)
 - open/close 2907 (time 1789635465.68 total 60.06 last 50.20)
 - open/close 3406 (time 1789635475.71 total 70.09 last 49.74)
 - open/close 3830 (time 1789635485.73 total 80.10 last 42.35)
 - open/close 4381 (time 1789635495.74 total 90.12 last 55.04)
 - open/close 4873 (time 1789635505.77 total 100.15 last 49.05)
total: 5000 open/close in 102.48 seconds: 48.79 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789635511 ; total 0 ; last 0)
total: 5000 unlinks in 68 seconds: 73.529411 unlinks/second
fail_loc=0