== sanity test 60c: unlink file when mds full ============ 20:38:30 (1789778310)
create 5000 files
 - open/close 462 (time 1789778325.78 total 10.01 last 46.15)
 - open/close 1074 (time 1789778335.79 total 20.02 last 61.13)
 - open/close 1664 (time 1789778345.80 total 30.03 last 58.96)
 - open/close 2279 (time 1789778355.80 total 40.03 last 61.48)
 - open/close 2909 (time 1789778365.80 total 50.03 last 62.99)
 - open/close 3488 (time 1789778375.81 total 60.04 last 57.87)
 - open/close 4129 (time 1789778385.82 total 70.05 last 64.04)
 - open/close 4680 (time 1789778395.82 total 80.05 last 55.10)
total: 5000 open/close in 87.00 seconds: 57.47 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789778407 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0