== sanity test 60c: unlink file when mds full ============ 23:12:49 (1780974769)
create 5000 files
 - open/close 705 (time 1780974783.99 total 10.01 last 70.45)
 - open/close 1432 (time 1780974794.01 total 20.02 last 72.58)
 - open/close 2221 (time 1780974804.01 total 30.03 last 78.85)
 - open/close 2996 (time 1780974814.02 total 40.04 last 77.46)
 - open/close 3532 (time 1780974824.04 total 50.06 last 53.48)
 - open/close 4029 (time 1780974834.04 total 60.06 last 49.70)
 - open/close 4480 (time 1780974844.07 total 70.09 last 44.97)
 - open/close 4945 (time 1780974854.08 total 80.09 last 46.47)
total: 5000 open/close in 81.18 seconds: 61.59 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1780974862 ; total 0 ; last 0)
total: 5000 unlinks in 43 seconds: 116.279068 unlinks/second
fail_loc=0