== sanity test 60c: unlink file when mds full ============ 04:05:55 (1788509155)
create 5000 files
 - open/close 490 (time 1788509170.22 total 10.01 last 48.94)
 - open/close 986 (time 1788509180.23 total 20.01 last 49.59)
 - open/close 1462 (time 1788509190.23 total 30.02 last 47.58)
 - open/close 1952 (time 1788509200.24 total 40.03 last 48.94)
 - open/close 2440 (time 1788509210.24 total 50.03 last 48.80)
 - open/close 2914 (time 1788509220.26 total 60.04 last 47.33)
 - open/close 3349 (time 1788509230.29 total 70.08 last 43.35)
 - open/close 3781 (time 1788509240.31 total 80.10 last 43.13)
 - open/close 4146 (time 1788509250.32 total 90.10 last 36.47)
 - open/close 4607 (time 1788509260.33 total 100.12 last 46.04)
total: 5000 open/close in 108.68 seconds: 46.01 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788509272 ; total 0 ; last 0)
total: 5000 unlinks in 73 seconds: 68.493149 unlinks/second
fail_loc=0