== sanity test 60c: unlink file when mds full ============ 18:20:58 (1786400458)
create 5000 files
 - open/close 544 (time 1786400472.88 total 10.02 last 54.29)
 - open/close 1065 (time 1786400482.88 total 20.02 last 52.08)
 - open/close 1697 (time 1786400492.89 total 30.04 last 63.13)
 - open/close 2252 (time 1786400502.90 total 40.04 last 55.46)
 - open/close 2746 (time 1786400512.91 total 50.05 last 49.35)
 - open/close 3350 (time 1786400522.92 total 60.07 last 60.32)
 - open/close 3938 (time 1786400532.92 total 70.07 last 58.77)
 - open/close 4473 (time 1786400542.93 total 80.08 last 53.45)
 - open/close 4995 (time 1786400552.94 total 90.08 last 52.17)
total: 5000 open/close in 90.14 seconds: 55.47 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1786400557 ; total 0 ; last 0)
total: 5000 unlinks in 76 seconds: 65.789474 unlinks/second
fail_loc=0