== sanity test 60c: unlink file when mds full ============ 01:23:46 (1788845026)
create 5000 files
 - open/close 484 (time 1788845041.31 total 10.01 last 48.37)
 - open/close 920 (time 1788845051.32 total 20.02 last 43.54)
 - open/close 1459 (time 1788845061.33 total 30.03 last 53.86)
 - open/close 1889 (time 1788845071.34 total 40.03 last 42.97)
 - open/close 2289 (time 1788845081.38 total 50.07 last 39.84)
 - open/close 2705 (time 1788845091.38 total 60.08 last 41.58)
 - open/close 3114 (time 1788845101.39 total 70.09 last 40.85)
 - open/close 3535 (time 1788845111.43 total 80.13 last 41.93)
 - open/close 3968 (time 1788845121.46 total 90.15 last 43.20)
 - open/close 4473 (time 1788845131.46 total 100.16 last 50.48)
total: 5000 open/close in 109.94 seconds: 45.48 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788845146 ; total 0 ; last 0)
total: 5000 unlinks in 66 seconds: 75.757576 unlinks/second
fail_loc=0