== sanity test 60c: unlink file when mds full ============ 13:25:51 (1776187551)
create 5000 files
 - open/close 574 (time 1776187565.81 total 10.03 last 57.25)
 - open/close 1221 (time 1776187575.81 total 20.03 last 64.68)
 - open/close 1940 (time 1776187585.82 total 30.04 last 71.85)
 - open/close 2623 (time 1776187595.83 total 40.05 last 68.22)
 - open/close 3220 (time 1776187605.83 total 50.05 last 59.70)
 - open/close 3779 (time 1776187615.85 total 60.06 last 55.82)
 - open/close 4397 (time 1776187625.88 total 70.09 last 61.62)
total: 5000 open/close in 78.85 seconds: 63.41 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1776187638 ; total 0 ; last 0)
total: 5000 unlinks in 43 seconds: 116.279068 unlinks/second
fail_loc=0