== sanity test 60c: unlink file when mds full ============ 09:54:35 (1787838875)
create 5000 files
 - open/close 523 (time 1787838890.78 total 10.01 last 52.26)
 - open/close 1019 (time 1787838900.80 total 20.02 last 49.53)
 - open/close 1540 (time 1787838910.80 total 30.02 last 52.08)
 - open/close 2108 (time 1787838920.82 total 40.04 last 56.69)
 - open/close 2623 (time 1787838930.82 total 50.05 last 51.47)
 - open/close 3211 (time 1787838940.83 total 60.05 last 58.79)
 - open/close 3783 (time 1787838950.84 total 70.06 last 57.13)
 - open/close 4322 (time 1787838960.84 total 80.06 last 53.90)
 - open/close 4851 (time 1787838970.84 total 90.07 last 52.86)
total: 5000 open/close in 92.68 seconds: 53.95 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787838977 ; total 0 ; last 0)
total: 5000 unlinks in 63 seconds: 79.365082 unlinks/second
fail_loc=0