== sanity test 60c: unlink file when mds full ============ 16:20:23 (1781209223)
create 5000 files
 - open/close 512 (time 1781209237.52 total 10.02 last 51.09)
 - open/close 950 (time 1781209247.54 total 20.04 last 43.72)
 - open/close 1380 (time 1781209257.54 total 30.04 last 42.99)
 - open/close 1790 (time 1781209267.55 total 40.06 last 40.93)
 - open/close 2256 (time 1781209277.58 total 50.08 last 46.49)
 - open/close 2654 (time 1781209287.60 total 60.10 last 39.73)
 - open/close 2993 (time 1781209297.61 total 70.11 last 33.84)
 - open/close 3364 (time 1781209307.63 total 80.14 last 37.02)
 - open/close 3750 (time 1781209317.64 total 90.15 last 38.56)
 - open/close 4069 (time 1781209327.67 total 100.17 last 31.82)
 - open/close 4473 (time 1781209337.68 total 110.18 last 40.36)
 - open/close 4905 (time 1781209347.69 total 120.19 last 43.15)
total: 5000 open/close in 122.38 seconds: 40.86 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781209354 ; total 0 ; last 0)
total: 5000 unlinks in 105 seconds: 47.619049 unlinks/second
fail_loc=0