== sanity test 60c: unlink file when mds full ============ 06:17:09 (1787825829)
create 5000 files
 - open/close 622 (time 1787825844.57 total 10.01 last 62.16)
 - open/close 1258 (time 1787825854.58 total 20.02 last 63.54)
 - open/close 1908 (time 1787825864.58 total 30.02 last 64.96)
 - open/close 2529 (time 1787825874.59 total 40.03 last 62.03)
 - open/close 3094 (time 1787825884.60 total 50.04 last 56.48)
 - open/close 3622 (time 1787825894.61 total 60.05 last 52.71)
 - open/close 4090 (time 1787825904.64 total 70.08 last 46.68)
 - open/close 4673 (time 1787825914.66 total 80.10 last 58.19)
total: 5000 open/close in 86.08 seconds: 58.08 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787825924 ; total 0 ; last 0)
total: 5000 unlinks in 77 seconds: 64.935066 unlinks/second
fail_loc=0