== sanity test 60c: unlink file when mds full ============ 22:35:40 (1788748540)
create 5000 files
 - open/close 453 (time 1788748555.58 total 10.02 last 45.21)
 - open/close 901 (time 1788748565.60 total 20.04 last 44.72)
 - open/close 1407 (time 1788748575.61 total 30.06 last 50.50)
 - open/close 1868 (time 1788748585.63 total 40.07 last 46.04)
 - open/close 2304 (time 1788748595.64 total 50.08 last 43.57)
 - open/close 2760 (time 1788748605.66 total 60.10 last 45.48)
 - open/close 3230 (time 1788748615.68 total 70.12 last 46.90)
 - open/close 3695 (time 1788748625.69 total 80.13 last 46.48)
 - open/close 4150 (time 1788748635.70 total 90.14 last 45.46)
 - open/close 4628 (time 1788748645.71 total 100.16 last 47.72)
total: 5000 open/close in 108.10 seconds: 46.26 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788748657 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0