== sanity test 60c: unlink file when mds full ============ 08:50:56 (1774875056)
create 5000 files
 - open/close 524 (time 1774875071.24 total 10.00 last 52.39)
 - open/close 1080 (time 1774875081.26 total 20.02 last 55.51)
 - open/close 1625 (time 1774875091.29 total 30.05 last 54.32)
 - open/close 2069 (time 1774875101.31 total 40.06 last 44.34)
 - open/close 2447 (time 1774875111.32 total 50.07 last 37.76)
 - open/close 2857 (time 1774875121.32 total 60.07 last 41.00)
 - open/close 3395 (time 1774875131.32 total 70.08 last 53.77)
 - open/close 3849 (time 1774875141.35 total 80.10 last 45.30)
 - open/close 4366 (time 1774875151.35 total 90.11 last 51.66)
 - open/close 4806 (time 1774875161.40 total 100.16 last 43.80)
total: 5000 open/close in 105.90 seconds: 47.22 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1774875173 ; total 0 ; last 0)
total: 5000 unlinks in 72 seconds: 69.444443 unlinks/second
fail_loc=0