== sanity test 60c: unlink file when mds full ============ 03:14:45 (1779693285)
create 5000 files
 - open/close 471 (time 1779693299.93 total 10.02 last 47.01)
 - open/close 911 (time 1779693309.95 total 20.03 last 43.93)
 - open/close 1356 (time 1779693319.97 total 30.06 last 44.39)
 - open/close 1822 (time 1779693329.97 total 40.06 last 46.58)
 - open/close 2252 (time 1779693339.98 total 50.07 last 42.96)
 - open/close 2700 (time 1779693349.99 total 60.08 last 44.77)
 - open/close 3229 (time 1779693360.01 total 70.10 last 52.78)
 - open/close 3696 (time 1779693370.03 total 80.12 last 46.61)
 - open/close 4223 (time 1779693380.04 total 90.12 last 52.68)
 - open/close 4702 (time 1779693390.07 total 100.15 last 47.76)
total: 5000 open/close in 107.23 seconds: 46.63 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1779693401 ; total 0 ; last 0)
total: 5000 unlinks in 72 seconds: 69.444443 unlinks/second
fail_loc=0