== sanity test 60c: unlink file when mds full ============ 10:07:15 (1789394835)
create 5000 files
 - open/close 555 (time 1789394848.79 total 10.01 last 55.47)
 - open/close 1073 (time 1789394858.81 total 20.02 last 51.72)
 - open/close 1606 (time 1789394868.82 total 30.04 last 53.23)
 - open/close 2133 (time 1789394878.83 total 40.05 last 52.64)
 - open/close 2643 (time 1789394888.85 total 50.06 last 50.93)
 - open/close 3177 (time 1789394898.85 total 60.06 last 53.38)
 - open/close 3713 (time 1789394908.85 total 70.07 last 53.59)
 - open/close 4291 (time 1789394918.85 total 80.07 last 57.78)
 - open/close 4806 (time 1789394928.86 total 90.07 last 51.47)
total: 5000 open/close in 94.01 seconds: 53.19 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789394937 ; total 0 ; last 0)
total: 5000 unlinks in 66 seconds: 75.757576 unlinks/second
fail_loc=0