== sanity test 60c: unlink file when mds full ============ 19:10:45 (1785453045)
create 5000 files
 - open/close 382 (time 1785453060.92 total 10.03 last 38.09)
 - open/close 807 (time 1785453070.93 total 20.04 last 42.45)
 - open/close 1239 (time 1785453080.94 total 30.05 last 43.15)
 - open/close 1633 (time 1785453090.96 total 40.07 last 39.34)
 - open/close 2265 (time 1785453100.98 total 50.09 last 63.04)
 - open/close 2592 (time 1785453111.00 total 60.11 last 32.66)
 - open/close 2974 (time 1785453121.02 total 70.13 last 38.11)
 - open/close 3389 (time 1785453131.04 total 80.15 last 41.41)
 - open/close 3684 (time 1785453141.10 total 90.21 last 29.34)
 - open/close 4000 (time 1785453151.14 total 100.25 last 31.47)
 - open/close 4432 (time 1785453161.15 total 110.26 last 43.17)
 - open/close 4761 (time 1785453171.16 total 120.27 last 32.86)
total: 5000 open/close in 126.77 seconds: 39.44 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1785453183 ; total 0 ; last 0)
total: 5000 unlinks in 86 seconds: 58.139534 unlinks/second
fail_loc=0