== sanity test 60c: unlink file when mds full ============ 13:52:33 (1783965153)
create 5000 files
 - open/close 534 (time 1783965168.23 total 10.01 last 53.35)
 - open/close 1045 (time 1783965178.24 total 20.02 last 51.04)
 - open/close 1502 (time 1783965188.25 total 30.03 last 45.67)
 - open/close 2025 (time 1783965198.26 total 40.04 last 52.25)
 - open/close 2524 (time 1783965208.27 total 50.05 last 49.86)
 - open/close 3022 (time 1783965218.27 total 60.05 last 49.77)
 - open/close 3531 (time 1783965228.27 total 70.05 last 50.90)
 - open/close 4013 (time 1783965238.28 total 80.06 last 48.17)
 - open/close 4483 (time 1783965248.28 total 90.07 last 46.96)
 - open/close 4990 (time 1783965258.30 total 100.08 last 50.60)
total: 5000 open/close in 100.31 seconds: 49.85 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1783965262 ; total 0 ; last 0)
total: 5000 unlinks in 72 seconds: 69.444443 unlinks/second
fail_loc=0