== sanity test 60c: unlink file when mds full ============ 15:22:31 (1788463351)
create 5000 files
 - open/close 485 (time 1788463365.78 total 10.01 last 48.44)
 - open/close 973 (time 1788463375.79 total 20.03 last 48.73)
 - open/close 1473 (time 1788463385.80 total 30.03 last 49.98)
 - open/close 2026 (time 1788463395.80 total 40.03 last 55.30)
 - open/close 2511 (time 1788463405.81 total 50.05 last 48.42)
 - open/close 3037 (time 1788463415.82 total 60.05 last 52.58)
 - open/close 3506 (time 1788463425.83 total 70.06 last 46.86)
 - open/close 3992 (time 1788463435.88 total 80.12 last 48.33)
 - open/close 4384 (time 1788463445.90 total 90.13 last 39.14)
 - open/close 4918 (time 1788463455.91 total 100.15 last 53.34)
total: 5000 open/close in 101.90 seconds: 49.07 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788463462 ; total 0 ; last 0)
total: 5000 unlinks in 75 seconds: 66.666664 unlinks/second
fail_loc=0