== sanity test 60c: unlink file when mds full ============ 22:46:48 (1788835608)
create 5000 files
 - open/close 401 (time 1788835622.84 total 10.01 last 40.07)
 - open/close 784 (time 1788835632.85 total 20.01 last 38.29)
 - open/close 1163 (time 1788835642.85 total 30.02 last 37.89)
 - open/close 1582 (time 1788835652.87 total 40.03 last 41.83)
 - open/close 1991 (time 1788835662.88 total 50.05 last 40.83)
 - open/close 2431 (time 1788835672.90 total 60.07 last 43.92)
 - open/close 2901 (time 1788835682.91 total 70.07 last 46.97)
 - open/close 3344 (time 1788835692.93 total 80.09 last 44.21)
 - open/close 3749 (time 1788835702.94 total 90.10 last 40.45)
 - open/close 4176 (time 1788835712.95 total 100.12 last 42.64)
 - open/close 4591 (time 1788835722.96 total 110.13 last 41.46)
total: 5000 open/close in 119.42 seconds: 41.87 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788835737 ; total 0 ; last 0)
total: 5000 unlinks in 81 seconds: 61.728394 unlinks/second
fail_loc=0