== sanity test 60c: unlink file when mds full ============ 19:37:35 (1789601855)
create 5000 files
 - open/close 538 (time 1789601869.29 total 10.03 last 53.64)
 - open/close 1063 (time 1789601879.30 total 20.04 last 52.45)
 - open/close 1672 (time 1789601889.32 total 30.05 last 60.81)
 - open/close 2274 (time 1789601899.32 total 40.06 last 60.19)
 - open/close 2857 (time 1789601909.32 total 50.06 last 58.28)
 - open/close 3308 (time 1789601919.33 total 60.07 last 45.04)
 - open/close 3766 (time 1789601929.34 total 70.08 last 45.75)
 - open/close 4321 (time 1789601939.35 total 80.09 last 55.48)
 - open/close 4901 (time 1789601949.35 total 90.09 last 57.98)
total: 5000 open/close in 91.76 seconds: 54.49 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789601955 ; total 0 ; last 0)
total: 5000 unlinks in 61 seconds: 81.967216 unlinks/second
fail_loc=0