== sanity test 60c: unlink file when mds full ============ 21:23:00 (1788484980)
create 5000 files
 - open/close 457 (time 1788484994.79 total 10.01 last 45.67)
 - open/close 868 (time 1788485004.80 total 20.02 last 41.06)
 - open/close 1285 (time 1788485014.81 total 30.03 last 41.66)
 - open/close 1687 (time 1788485024.82 total 40.04 last 40.15)
 - open/close 2117 (time 1788485034.82 total 50.04 last 42.99)
 - open/close 2527 (time 1788485044.83 total 60.04 last 40.98)
 - open/close 2955 (time 1788485054.83 total 70.05 last 42.79)
 - open/close 3386 (time 1788485064.85 total 80.07 last 43.01)
 - open/close 3824 (time 1788485074.85 total 90.07 last 43.80)
 - open/close 4239 (time 1788485084.86 total 100.07 last 41.47)
 - open/close 4646 (time 1788485094.88 total 110.10 last 40.60)
total: 5000 open/close in 118.39 seconds: 42.23 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788485107 ; total 0 ; last 0)
total: 5000 unlinks in 87 seconds: 57.471264 unlinks/second
fail_loc=0