== sanity test 60c: unlink file when mds full ============ 10:28:26 (1788359306)
create 5000 files
 - open/close 472 (time 1788359320.55 total 10.00 last 47.18)
 - open/close 934 (time 1788359330.56 total 20.01 last 46.17)
 - open/close 1351 (time 1788359340.57 total 30.02 last 41.66)
 - open/close 1779 (time 1788359350.58 total 40.03 last 42.77)
 - open/close 2282 (time 1788359360.58 total 50.03 last 50.27)
 - open/close 2847 (time 1788359370.60 total 60.05 last 56.39)
 - open/close 3425 (time 1788359380.60 total 70.06 last 57.79)
 - open/close 4095 (time 1788359390.62 total 80.07 last 66.89)
 - open/close 4694 (time 1788359400.63 total 90.09 last 59.82)
total: 5000 open/close in 95.55 seconds: 52.33 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788359408 ; total 0 ; last 0)
total: 5000 unlinks in 49 seconds: 102.040817 unlinks/second
fail_loc=0