== sanity test 60c: unlink file when mds full ============ 02:20:25 (1789021225)
create 5000 files
 - open/close 468 (time 1789021240.66 total 10.02 last 46.72)
 - open/close 872 (time 1789021250.67 total 20.02 last 40.39)
 - open/close 1196 (time 1789021260.72 total 30.07 last 32.23)
 - open/close 1509 (time 1789021270.72 total 40.07 last 31.29)
 - open/close 1800 (time 1789021280.73 total 50.08 last 29.09)
 - open/close 2155 (time 1789021290.73 total 60.08 last 35.48)
 - open/close 2622 (time 1789021300.77 total 70.13 last 46.51)
 - open/close 3086 (time 1789021310.79 total 80.14 last 46.31)
 - open/close 3507 (time 1789021320.80 total 90.15 last 42.06)
 - open/close 3969 (time 1789021330.80 total 100.15 last 46.19)
 - open/close 4392 (time 1789021340.85 total 110.20 last 42.11)
 - open/close 4835 (time 1789021350.86 total 120.22 last 44.22)
total: 5000 open/close in 123.63 seconds: 40.44 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789021359 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0