== sanity test 60c: unlink file when mds full ============ 20:40:17 (1781224817)
create 5000 files
 - open/close 339 (time 1781224834.72 total 10.02 last 33.84)
 - open/close 694 (time 1781224844.75 total 20.05 last 35.39)
 - open/close 1191 (time 1781224854.76 total 30.06 last 49.65)
 - open/close 1580 (time 1781224864.76 total 40.06 last 38.88)
 - open/close 2117 (time 1781224874.77 total 50.07 last 53.66)
 - open/close 2592 (time 1781224884.78 total 60.08 last 47.45)
 - open/close 3063 (time 1781224894.79 total 70.09 last 47.07)
 - open/close 3503 (time 1781224904.80 total 80.10 last 43.95)
 - open/close 3990 (time 1781224914.82 total 90.12 last 48.62)
 - open/close 4427 (time 1781224924.83 total 100.13 last 43.65)
 - open/close 4894 (time 1781224934.84 total 110.14 last 46.64)
total: 5000 open/close in 112.50 seconds: 44.44 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781224942 ; total 0 ; last 0)
total: 5000 unlinks in 78 seconds: 64.102562 unlinks/second
fail_loc=0