== sanity test 60c: unlink file when mds full ============ 19:29:16 (1784935756)
create 5000 files
 - open/close 485 (time 1784935769.88 total 10.01 last 48.47)
 - open/close 1002 (time 1784935779.91 total 20.03 last 51.57)
 - open/close 1495 (time 1784935789.91 total 30.04 last 49.28)
 - open/close 2008 (time 1784935799.91 total 40.04 last 51.30)
 - open/close 2498 (time 1784935809.92 total 50.05 last 48.96)
 - open/close 2982 (time 1784935819.93 total 60.05 last 48.37)
 - open/close 3479 (time 1784935829.94 total 70.07 last 49.62)
 - open/close 3963 (time 1784935839.95 total 80.08 last 48.37)
 - open/close 4449 (time 1784935849.98 total 90.11 last 48.46)
 - open/close 4916 (time 1784935859.99 total 100.11 last 46.67)
total: 5000 open/close in 102.21 seconds: 48.92 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1784935867 ; total 0 ; last 0)
total: 5000 unlinks in 81 seconds: 61.728394 unlinks/second
fail_loc=0