== sanity test 60c: unlink file when mds full ============ 10:58:39 (1772467119)
create 5000 files
 - open/close 550 (time 1772467134.18 total 10.02 last 54.89)
 - open/close 1046 (time 1772467144.20 total 20.04 last 49.50)
 - open/close 1556 (time 1772467154.20 total 30.04 last 50.98)
 - open/close 2108 (time 1772467164.21 total 40.05 last 55.16)
 - open/close 2567 (time 1772467174.22 total 50.06 last 45.85)
 - open/close 3137 (time 1772467184.23 total 60.08 last 56.91)
 - open/close 3704 (time 1772467194.24 total 70.08 last 56.68)
 - open/close 4322 (time 1772467204.25 total 80.10 last 61.70)
 - open/close 4925 (time 1772467214.26 total 90.11 last 60.24)
total: 5000 open/close in 91.43 seconds: 54.68 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1772467219 ; total 0 ; last 0)
total: 5000 unlinks in 62 seconds: 80.645164 unlinks/second
fail_loc=0