== sanity test 60c: unlink file when mds full ============ 07:45:05 (1789127105)
create 5000 files
 - open/close 522 (time 1789127119.62 total 10.02 last 52.10)
 - open/close 986 (time 1789127129.65 total 20.05 last 46.24)
 - open/close 1501 (time 1789127139.67 total 30.07 last 51.44)
 - open/close 2008 (time 1789127149.68 total 40.08 last 50.63)
 - open/close 2516 (time 1789127159.68 total 50.08 last 50.78)
 - open/close 3025 (time 1789127169.71 total 60.10 last 50.80)
 - open/close 3524 (time 1789127179.73 total 70.13 last 49.78)
 - open/close 4005 (time 1789127189.74 total 80.14 last 48.06)
 - open/close 4477 (time 1789127199.75 total 90.15 last 47.13)
 - open/close 4948 (time 1789127209.76 total 100.16 last 47.05)
total: 5000 open/close in 101.44 seconds: 49.29 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789127215 ; total 0 ; last 0)
total: 5000 unlinks in 79 seconds: 63.291138 unlinks/second
fail_loc=0