== sanity test 60c: unlink file when mds full ============ 10:38:45 (1787841525)
create 5000 files
 - open/close 380 (time 1787841539.31 total 10.02 last 37.93)
 - open/close 827 (time 1787841549.31 total 20.02 last 44.70)
 - open/close 1320 (time 1787841559.33 total 30.04 last 49.20)
 - open/close 1791 (time 1787841569.34 total 40.05 last 47.05)
 - open/close 2371 (time 1787841579.36 total 50.07 last 57.90)
 - open/close 2911 (time 1787841589.38 total 60.08 last 53.92)
 - open/close 3401 (time 1787841599.38 total 70.09 last 48.99)
 - open/close 3951 (time 1787841609.39 total 80.09 last 54.95)
 - open/close 4567 (time 1787841619.39 total 90.10 last 61.57)
total: 5000 open/close in 97.78 seconds: 51.14 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787841631 ; total 0 ; last 0)
total: 5000 unlinks in 70 seconds: 71.428574 unlinks/second
fail_loc=0