== sanity test 60c: unlink file when mds full ============ 09:33:33 (1782480813)
create 5000 files
 - open/close 577 (time 1782480828.20 total 10.01 last 57.62)
 - open/close 1172 (time 1782480838.21 total 20.02 last 59.45)
 - open/close 1758 (time 1782480848.21 total 30.02 last 58.60)
 - open/close 2241 (time 1782480858.23 total 40.04 last 48.19)
 - open/close 2856 (time 1782480868.23 total 50.05 last 61.50)
 - open/close 3485 (time 1782480878.24 total 60.05 last 62.86)
 - open/close 4022 (time 1782480888.24 total 70.05 last 53.69)
 - open/close 4575 (time 1782480898.27 total 80.08 last 55.17)
total: 5000 open/close in 87.92 seconds: 56.87 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1782480910 ; total 0 ; last 0)
total: 5000 unlinks in 67 seconds: 74.626869 unlinks/second
fail_loc=0