== sanity test 60c: unlink file when mds full ============ 15:09:56 (1787771396)
create 5000 files
 - open/close 543 (time 1787771411.08 total 10.05 last 54.06)
 - open/close 999 (time 1787771421.09 total 20.06 last 45.53)
 - open/close 1612 (time 1787771431.11 total 30.08 last 61.20)
 - open/close 2101 (time 1787771441.13 total 40.10 last 48.81)
 - open/close 2604 (time 1787771451.13 total 50.10 last 50.28)
 - open/close 3114 (time 1787771461.15 total 60.12 last 50.89)
 - open/close 3640 (time 1787771471.18 total 70.15 last 52.43)
 - open/close 3989 (time 1787771481.19 total 80.16 last 34.90)
 - open/close 4411 (time 1787771491.22 total 90.19 last 42.06)
 - open/close 4890 (time 1787771501.22 total 100.19 last 47.89)
total: 5000 open/close in 102.69 seconds: 48.69 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787771507 ; total 0 ; last 0)
total: 5000 unlinks in 75 seconds: 66.666664 unlinks/second
fail_loc=0