== sanity test 60c: unlink file when mds full ============ 19:33:11 (1789083191)
create 5000 files
 - open/close 505 (time 1789083205.44 total 10.01 last 50.46)
 - open/close 1064 (time 1789083215.45 total 20.01 last 55.87)
 - open/close 1626 (time 1789083225.48 total 30.05 last 56.02)
 - open/close 2020 (time 1789083235.50 total 40.06 last 39.34)
 - open/close 2402 (time 1789083245.51 total 50.08 last 38.14)
 - open/close 2921 (time 1789083255.52 total 60.08 last 51.85)
 - open/close 3452 (time 1789083265.53 total 70.09 last 53.06)
 - open/close 3948 (time 1789083275.54 total 80.10 last 49.54)
 - open/close 4523 (time 1789083285.55 total 90.11 last 57.47)
 - open/close 4974 (time 1789083295.56 total 100.12 last 45.05)
total: 5000 open/close in 100.53 seconds: 49.74 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789083300 ; total 0 ; last 0)
total: 5000 unlinks in 70 seconds: 71.428574 unlinks/second
fail_loc=0