== sanity test 60c: unlink file when mds full ============ 06:44:48 (1790678688)
create 5000 files
 - open/close 531 (time 1790678702.72 total 10.03 last 52.97)
 - open/close 1065 (time 1790678712.72 total 20.03 last 53.36)
 - open/close 1571 (time 1790678722.73 total 30.04 last 50.58)
 - open/close 1999 (time 1790678732.75 total 40.06 last 42.71)
 - open/close 2426 (time 1790678742.76 total 50.07 last 42.65)
 - open/close 2961 (time 1790678752.76 total 60.07 last 53.48)
 - open/close 3352 (time 1790678762.77 total 70.08 last 39.07)
 - open/close 3801 (time 1790678772.78 total 80.09 last 44.84)
 - open/close 4265 (time 1790678782.80 total 90.11 last 46.30)
 - open/close 4765 (time 1790678792.82 total 100.13 last 49.94)
total: 5000 open/close in 105.35 seconds: 47.46 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1790678803 ; total 0 ; last 0)
total: 5000 unlinks in 67 seconds: 74.626869 unlinks/second
fail_loc=0