== sanity test 60c: unlink file when mds full ============ 02:02:01 (1788328921)
create 5000 files
 - open/close 493 (time 1788328937.73 total 10.00 last 49.30)
 - open/close 970 (time 1788328947.75 total 20.02 last 47.61)
 - open/close 1471 (time 1788328957.76 total 30.03 last 50.03)
 - open/close 1963 (time 1788328967.76 total 40.04 last 49.18)
 - open/close 2498 (time 1788328977.77 total 50.04 last 53.49)
 - open/close 2973 (time 1788328987.77 total 60.04 last 47.50)
 - open/close 3397 (time 1788328997.77 total 70.05 last 42.37)
 - open/close 3833 (time 1788329007.80 total 80.07 last 43.50)
 - open/close 4276 (time 1788329017.82 total 90.09 last 44.20)
 - open/close 4779 (time 1788329027.82 total 100.09 last 50.30)
total: 5000 open/close in 104.53 seconds: 47.83 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788329036 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0