== sanity test 60c: unlink file when mds full ============ 08:49:53 (1782218993)
create 5000 files
 - open/close 512 (time 1782219007.22 total 10.00 last 51.20)
 - open/close 1035 (time 1782219017.25 total 20.02 last 52.17)
 - open/close 1556 (time 1782219027.25 total 30.03 last 52.08)
 - open/close 2135 (time 1782219037.26 total 40.03 last 57.88)
 - open/close 2658 (time 1782219047.26 total 50.04 last 52.26)
 - open/close 3160 (time 1782219057.27 total 60.04 last 50.18)
 - open/close 3705 (time 1782219067.28 total 70.06 last 54.44)
 - open/close 4228 (time 1782219077.29 total 80.07 last 52.23)
 - open/close 4708 (time 1782219087.32 total 90.09 last 47.88)
total: 5000 open/close in 96.39 seconds: 51.87 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1782219097 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0