== sanity test 60c: unlink file when mds full ============ 10:57:05 (1772467025)
create 5000 files
 - open/close 489 (time 1772467039.50 total 10.01 last 48.86)
 - open/close 922 (time 1772467049.50 total 20.01 last 43.28)
 - open/close 1403 (time 1772467059.51 total 30.02 last 48.07)
 - open/close 1934 (time 1772467069.53 total 40.04 last 52.99)
 - open/close 2381 (time 1772467079.55 total 50.06 last 44.63)
 - open/close 2853 (time 1772467089.55 total 60.06 last 47.20)
 - open/close 3314 (time 1772467099.56 total 70.07 last 46.04)
 - open/close 3804 (time 1772467109.56 total 80.07 last 48.99)
 - open/close 4347 (time 1772467119.57 total 90.08 last 54.24)
 - open/close 4871 (time 1772467129.60 total 100.11 last 52.23)
total: 5000 open/close in 102.79 seconds: 48.64 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1772467136 ; total 0 ; last 0)
total: 5000 unlinks in 70 seconds: 71.428574 unlinks/second
fail_loc=0