== sanity test 60c: unlink file when mds full ============ 18:15:10 (1736982910)
create 5000 files
 - open/close 1426 (time 1736982922.28 total 10.01 last 142.48)
 - open/close 2940 (time 1736982932.28 total 20.01 last 151.33)
 - open/close 4442 (time 1736982942.29 total 30.02 last 150.12)
total: 5000 open/close in 33.66 seconds: 148.55 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1736982947 ; total 0 ; last 0)
total: 5000 unlinks in 18 seconds: 277.777771 unlinks/second
fail_loc=0