== sanity test 60c: unlink file when mds full ============ 07:59:47 (1788263987)
create 5000 files
 - open/close 469 (time 1788264001.76 total 10.01 last 46.86)
 - open/close 945 (time 1788264011.77 total 20.02 last 47.53)
 - open/close 1455 (time 1788264021.79 total 30.04 last 50.94)
 - open/close 1939 (time 1788264031.79 total 40.04 last 48.39)
 - open/close 2447 (time 1788264041.79 total 50.04 last 50.77)
 - open/close 2962 (time 1788264051.81 total 60.06 last 51.41)
 - open/close 3409 (time 1788264061.82 total 70.07 last 44.65)
 - open/close 3913 (time 1788264071.82 total 80.07 last 50.39)
 - open/close 4406 (time 1788264081.84 total 90.09 last 49.22)
 - open/close 4775 (time 1788264091.85 total 100.10 last 36.87)
total: 5000 open/close in 105.16 seconds: 47.55 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788264102 ; total 0 ; last 0)
total: 5000 unlinks in 70 seconds: 71.428574 unlinks/second
fail_loc=0