== sanity test 60c: unlink file when mds full ============ 08:18:37 (1788869917)
create 5000 files
 - open/close 503 (time 1788869931.46 total 10.01 last 50.27)
 - open/close 1106 (time 1788869941.46 total 20.01 last 60.29)
 - open/close 1560 (time 1788869951.50 total 30.04 last 45.25)
 - open/close 1993 (time 1788869961.50 total 40.04 last 43.28)
 - open/close 2466 (time 1788869971.52 total 50.06 last 47.22)
 - open/close 2930 (time 1788869981.54 total 60.08 last 46.32)
 - open/close 3408 (time 1788869991.55 total 70.09 last 47.74)
 - open/close 3796 (time 1788870001.56 total 80.10 last 38.76)
 - open/close 4238 (time 1788870011.58 total 90.12 last 44.10)
 - open/close 4636 (time 1788870021.59 total 100.13 last 39.77)
total: 5000 open/close in 107.94 seconds: 46.32 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788870034 ; total 0 ; last 0)
total: 5000 unlinks in 88 seconds: 56.818180 unlinks/second
fail_loc=0