== sanity test 60c: unlink file when mds full ============ 09:46:38 (1790689598)
create 5000 files
 - open/close 434 (time 1790689612.09 total 10.01 last 43.34)
 - open/close 892 (time 1790689622.09 total 20.02 last 45.79)
 - open/close 1376 (time 1790689632.11 total 30.03 last 48.33)
 - open/close 1795 (time 1790689642.12 total 40.04 last 41.87)
 - open/close 2267 (time 1790689652.12 total 50.04 last 47.18)
 - open/close 2698 (time 1790689662.12 total 60.04 last 43.09)
 - open/close 3235 (time 1790689672.12 total 70.05 last 53.70)
 - open/close 3709 (time 1790689682.15 total 80.07 last 47.29)
 - open/close 4237 (time 1790689692.16 total 90.08 last 52.74)
 - open/close 4742 (time 1790689702.16 total 100.08 last 50.49)
total: 5000 open/close in 104.77 seconds: 47.72 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1790689710 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0