== sanity test 60c: unlink file when mds full ============ 13:16:08 (1783962968)
create 5000 files
 - open/close 490 (time 1783962983.67 total 10.01 last 48.93)
 - open/close 1037 (time 1783962993.73 total 20.07 last 54.38)
 - open/close 1545 (time 1783963003.74 total 30.08 last 50.76)
 - open/close 2085 (time 1783963013.75 total 40.09 last 53.96)
 - open/close 2581 (time 1783963023.75 total 50.10 last 49.56)
 - open/close 3059 (time 1783963033.77 total 60.12 last 47.69)
 - open/close 3540 (time 1783963043.78 total 70.13 last 48.06)
 - open/close 4008 (time 1783963053.79 total 80.14 last 46.76)
 - open/close 4444 (time 1783963063.83 total 90.18 last 43.43)
 - open/close 4992 (time 1783963073.83 total 100.18 last 54.78)
total: 5000 open/close in 100.35 seconds: 49.82 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1783963079 ; total 0 ; last 0)
total: 5000 unlinks in 77 seconds: 64.935066 unlinks/second
fail_loc=0