== sanity test 60c: unlink file when mds full ============ 22:04:16 (1789437856)
create 5000 files
 - open/close 508 (time 1789437870.15 total 10.01 last 50.73)
 - open/close 997 (time 1789437880.16 total 20.03 last 48.84)
 - open/close 1438 (time 1789437890.21 total 30.07 last 43.91)
 - open/close 1861 (time 1789437900.22 total 40.09 last 42.22)
 - open/close 2319 (time 1789437910.24 total 50.10 last 45.73)
 - open/close 2791 (time 1789437920.25 total 60.11 last 47.17)
 - open/close 3243 (time 1789437930.26 total 70.13 last 45.12)
 - open/close 3695 (time 1789437940.28 total 80.14 last 45.14)
 - open/close 4150 (time 1789437950.30 total 90.17 last 45.38)
 - open/close 4578 (time 1789437960.32 total 100.19 last 42.72)
total: 5000 open/close in 109.57 seconds: 45.63 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789437974 ; total 0 ; last 0)
total: 5000 unlinks in 77 seconds: 64.935066 unlinks/second
fail_loc=0