== sanity test 60c: unlink file when mds full ============ 11:11:21 (1788534681)
create 5000 files
 - open/close 520 (time 1788534695.27 total 10.01 last 51.97)
 - open/close 1054 (time 1788534705.27 total 20.01 last 53.39)
 - open/close 1582 (time 1788534715.28 total 30.02 last 52.74)
 - open/close 2043 (time 1788534725.28 total 40.02 last 46.08)
 - open/close 2521 (time 1788534735.29 total 50.03 last 47.76)
 - open/close 2992 (time 1788534745.31 total 60.05 last 47.00)
 - open/close 3466 (time 1788534755.32 total 70.06 last 47.37)
 - open/close 3920 (time 1788534765.33 total 80.07 last 45.36)
 - open/close 4374 (time 1788534775.36 total 90.10 last 45.27)
 - open/close 4769 (time 1788534785.37 total 100.11 last 39.45)
total: 5000 open/close in 106.89 seconds: 46.78 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788534797 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0