== sanity test 60c: unlink file when mds full ============ 13:59:49 (1781027989)
create 5000 files
 - open/close 584 (time 1781028004.12 total 10.04 last 58.19)
 - open/close 1216 (time 1781028014.12 total 20.04 last 63.18)
 - open/close 1810 (time 1781028024.13 total 30.05 last 59.35)
 - open/close 2344 (time 1781028034.14 total 40.06 last 53.34)
 - open/close 2924 (time 1781028044.16 total 50.07 last 57.92)
 - open/close 3493 (time 1781028054.17 total 60.08 last 56.85)
 - open/close 4047 (time 1781028064.18 total 70.10 last 55.31)
 - open/close 4663 (time 1781028074.19 total 80.11 last 61.57)
total: 5000 open/close in 86.01 seconds: 58.14 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781028083 ; total 0 ; last 0)
total: 5000 unlinks in 62 seconds: 80.645164 unlinks/second
fail_loc=0