== sanity test 60c: unlink file when mds full ============ 21:13:45 (1781226825)
create 5000 files
 - open/close 531 (time 1781226840.14 total 10.01 last 53.02)
 - open/close 925 (time 1781226850.17 total 20.04 last 39.29)
 - open/close 1400 (time 1781226860.17 total 30.05 last 47.47)
 - open/close 1945 (time 1781226870.18 total 40.06 last 54.44)
 - open/close 2480 (time 1781226880.19 total 50.06 last 53.48)
 - open/close 2929 (time 1781226890.19 total 60.07 last 44.88)
 - open/close 3428 (time 1781226900.21 total 70.08 last 49.82)
 - open/close 3925 (time 1781226910.22 total 80.10 last 49.63)
 - open/close 4407 (time 1781226920.23 total 90.11 last 48.16)
 - open/close 4910 (time 1781226930.23 total 100.11 last 50.28)
total: 5000 open/close in 101.89 seconds: 49.07 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781226937 ; total 1 ; last 1)
total: 5000 unlinks in 84 seconds: 59.523811 unlinks/second
fail_loc=0