== sanity test 60c: unlink file when mds full ============ 17:30:07 (1763332207)
create 5000 files
 - open/close 507 (time 1763332220.83 total 10.02 last 50.61)
 - open/close 996 (time 1763332230.83 total 20.02 last 48.88)
 - open/close 1518 (time 1763332240.86 total 30.04 last 52.09)
 - open/close 1993 (time 1763332250.86 total 40.05 last 47.45)
 - open/close 2463 (time 1763332260.88 total 50.06 last 46.94)
 - open/close 2964 (time 1763332270.90 total 60.08 last 50.01)
 - open/close 3443 (time 1763332280.90 total 70.09 last 47.87)
 - open/close 3901 (time 1763332290.91 total 80.09 last 45.77)
 - open/close 4372 (time 1763332300.91 total 90.09 last 47.09)
 - open/close 4847 (time 1763332310.91 total 100.10 last 47.49)
total: 5000 open/close in 103.34 seconds: 48.38 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1763332318 ; total 0 ; last 0)
total: 5000 unlinks in 77 seconds: 64.935066 unlinks/second
fail_loc=0