== sanity test 60c: unlink file when mds full ============ 20:58:39 (1787101119)
create 5000 files
 - open/close 652 (time 1787101132.24 total 10.02 last 65.10)
 - open/close 1233 (time 1787101142.25 total 20.02 last 58.07)
 - open/close 1837 (time 1787101152.25 total 30.02 last 60.38)
 - open/close 2407 (time 1787101162.26 total 40.04 last 56.94)
 - open/close 2993 (time 1787101172.27 total 50.05 last 58.53)
 - open/close 3591 (time 1787101182.28 total 60.05 last 59.78)
 - open/close 4211 (time 1787101192.29 total 70.06 last 61.92)
 - open/close 4930 (time 1787101202.31 total 80.08 last 71.78)
total: 5000 open/close in 81.18 seconds: 61.59 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787101205 ; total 0 ; last 0)
total: 5000 unlinks in 49 seconds: 102.040817 unlinks/second
fail_loc=0