== sanity test 60c: unlink file when mds full ============ 23:59:45 (1783137585)
create 5000 files
 - open/close 505 (time 1783137600.06 total 10.00 last 50.48)
 - open/close 1070 (time 1783137610.08 total 20.02 last 56.40)
 - open/close 1623 (time 1783137620.09 total 30.04 last 55.22)
 - open/close 2158 (time 1783137630.10 total 40.04 last 53.46)
 - open/close 2684 (time 1783137640.10 total 50.04 last 52.59)
 - open/close 3206 (time 1783137650.12 total 60.06 last 52.10)
 - open/close 3679 (time 1783137660.14 total 70.09 last 47.19)
 - open/close 4133 (time 1783137670.15 total 80.10 last 45.35)
 - open/close 4639 (time 1783137680.16 total 90.11 last 50.55)
total: 5000 open/close in 97.75 seconds: 51.15 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1783137692 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0