== sanity test 60c: unlink file when mds full ============ 10:02:20 (1789048940)
create 5000 files
 - open/close 353 (time 1789048956.05 total 10.02 last 35.24)
 - open/close 735 (time 1789048966.05 total 20.02 last 38.20)
 - open/close 1147 (time 1789048976.06 total 30.03 last 41.16)
 - open/close 1599 (time 1789048986.06 total 40.03 last 45.20)
 - open/close 2028 (time 1789048996.08 total 50.04 last 42.83)
 - open/close 2447 (time 1789049006.08 total 60.04 last 41.90)
 - open/close 2900 (time 1789049016.09 total 70.05 last 45.27)
 - open/close 3324 (time 1789049026.10 total 80.07 last 42.34)
 - open/close 3768 (time 1789049036.11 total 90.08 last 44.33)
 - open/close 4176 (time 1789049046.13 total 100.10 last 40.74)
 - open/close 4603 (time 1789049056.15 total 110.12 last 42.62)
total: 5000 open/close in 119.58 seconds: 41.81 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789049070 ; total 0 ; last 0)
total: 5000 unlinks in 83 seconds: 60.240963 unlinks/second
fail_loc=0