== sanity test 60c: unlink file when mds full ============ 21:38:57 (1788745137)
create 5000 files
 - open/close 444 (time 1788745153.91 total 10.01 last 44.36)
 - open/close 967 (time 1788745163.93 total 20.02 last 52.23)
 - open/close 1493 (time 1788745173.96 total 30.06 last 52.40)
 - open/close 1918 (time 1788745183.97 total 40.07 last 42.49)
 - open/close 2439 (time 1788745193.99 total 50.09 last 51.99)
 - open/close 2905 (time 1788745204.01 total 60.11 last 46.49)
 - open/close 3370 (time 1788745214.02 total 70.12 last 46.47)
 - open/close 3855 (time 1788745224.04 total 80.13 last 48.42)
 - open/close 4297 (time 1788745234.04 total 90.14 last 44.18)
 - open/close 4717 (time 1788745244.06 total 100.16 last 41.90)
total: 5000 open/close in 106.33 seconds: 47.02 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788745255 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0