== sanity test 60c: unlink file when mds full ============ 23:29:06 (1782530946)
create 5000 files
 - open/close 443 (time 1782530961.14 total 10.00 last 44.29)
 - open/close 937 (time 1782530971.15 total 20.01 last 49.34)
 - open/close 1450 (time 1782530981.15 total 30.02 last 51.29)
 - open/close 2066 (time 1782530991.19 total 40.05 last 61.39)
 - open/close 2622 (time 1782531001.20 total 50.06 last 55.55)
 - open/close 3084 (time 1782531011.20 total 60.07 last 46.16)
 - open/close 3589 (time 1782531021.21 total 70.08 last 50.46)
 - open/close 4036 (time 1782531031.25 total 80.11 last 44.55)
 - open/close 4545 (time 1782531041.25 total 90.12 last 50.88)
total: 5000 open/close in 100.10 seconds: 49.95 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1782531056 ; total 0 ; last 0)
total: 5000 unlinks in 75 seconds: 66.666664 unlinks/second
fail_loc=0