== sanity test 60c: unlink file when mds full ============ 23:32:43 (1788838363)
create 5000 files
 - open/close 537 (time 1788838377.56 total 10.03 last 53.52)
 - open/close 1105 (time 1788838387.56 total 20.03 last 56.80)
 - open/close 1618 (time 1788838397.57 total 30.05 last 51.24)
 - open/close 2058 (time 1788838407.58 total 40.05 last 43.99)
 - open/close 2518 (time 1788838417.58 total 50.06 last 45.97)
 - open/close 3048 (time 1788838427.59 total 60.07 last 52.93)
 - open/close 3555 (time 1788838437.62 total 70.09 last 50.57)
 - open/close 4041 (time 1788838447.63 total 80.10 last 48.57)
 - open/close 4525 (time 1788838457.63 total 90.11 last 48.37)
total: 5000 open/close in 99.83 seconds: 50.09 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788838471 ; total 0 ; last 0)
total: 5000 unlinks in 68 seconds: 73.529411 unlinks/second
fail_loc=0