== sanity test 60c: unlink file when mds full ============ 10:48:35 (1787582915)
create 5000 files
 - open/close 539 (time 1787582930.59 total 10.01 last 53.86)
 - open/close 1061 (time 1787582940.59 total 20.02 last 52.16)
 - open/close 1574 (time 1787582950.60 total 30.02 last 51.28)
 - open/close 2121 (time 1787582960.61 total 40.03 last 54.62)
 - open/close 2595 (time 1787582970.62 total 50.05 last 47.34)
 - open/close 3084 (time 1787582980.65 total 60.07 last 48.77)
 - open/close 3618 (time 1787582990.67 total 70.09 last 53.29)
 - open/close 4160 (time 1787583000.67 total 80.09 last 54.19)
 - open/close 4734 (time 1787583010.69 total 90.11 last 57.32)
total: 5000 open/close in 94.98 seconds: 52.64 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787583020 ; total 0 ; last 0)
total: 5000 unlinks in 61 seconds: 81.967216 unlinks/second
fail_loc=0