== sanity test 60c: unlink file when mds full ============ 09:30:41 (1788528641)
create 5000 files
 - open/close 487 (time 1788528655.96 total 10.01 last 48.67)
 - open/close 1013 (time 1788528665.96 total 20.01 last 52.60)
 - open/close 1470 (time 1788528675.97 total 30.01 last 45.67)
 - open/close 1924 (time 1788528685.97 total 40.02 last 45.38)
 - open/close 2368 (time 1788528695.99 total 50.04 last 44.32)
 - open/close 2810 (time 1788528706.01 total 60.05 last 44.14)
 - open/close 3244 (time 1788528716.02 total 70.07 last 43.33)
 - open/close 3681 (time 1788528726.03 total 80.07 last 43.68)
 - open/close 4132 (time 1788528736.03 total 90.07 last 45.09)
 - open/close 4624 (time 1788528746.06 total 100.10 last 49.07)
total: 5000 open/close in 108.52 seconds: 46.07 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788528758 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0