== sanity test 60c: unlink file when mds full ============ 20:59:05 (1787101145)
create 5000 files
 - open/close 860 (time 1787101158.15 total 10.02 last 85.85)
 - open/close 1719 (time 1787101168.15 total 20.02 last 85.90)
 - open/close 2488 (time 1787101178.16 total 30.03 last 76.78)
 - open/close 3344 (time 1787101188.17 total 40.04 last 85.53)
 - open/close 4218 (time 1787101198.18 total 50.05 last 87.32)
total: 5000 open/close in 58.53 seconds: 85.43 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787101208 ; total 0 ; last 0)
total: 5000 unlinks in 37 seconds: 135.135132 unlinks/second
fail_loc=0