== sanity test 60c: unlink file when mds full ============ 10:55:20 (1788360920)
create 5000 files
 - open/close 451 (time 1788360933.65 total 10.01 last 45.04)
 - open/close 889 (time 1788360943.66 total 20.02 last 43.76)
 - open/close 1324 (time 1788360953.69 total 30.05 last 43.36)
 - open/close 1798 (time 1788360963.71 total 40.07 last 47.33)
 - open/close 2209 (time 1788360973.71 total 50.08 last 41.07)
 - open/close 2686 (time 1788360983.72 total 60.08 last 47.66)
 - open/close 3106 (time 1788360993.74 total 70.10 last 41.92)
 - open/close 3539 (time 1788361003.75 total 80.11 last 43.28)
 - open/close 3957 (time 1788361013.76 total 90.12 last 41.76)
 - open/close 4385 (time 1788361023.76 total 100.13 last 42.76)
 - open/close 4842 (time 1788361033.78 total 110.14 last 45.64)
total: 5000 open/close in 113.76 seconds: 43.95 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788361040 ; total 0 ; last 0)
total: 5000 unlinks in 77 seconds: 64.935066 unlinks/second
fail_loc=0