== sanity test 60c: unlink file when mds full ============ 21:09:20 (1789607360)
create 5000 files
 - open/close 497 (time 1789607373.93 total 10.01 last 49.67)
 - open/close 997 (time 1789607383.93 total 20.01 last 50.00)
 - open/close 1497 (time 1789607393.95 total 30.03 last 49.88)
 - open/close 1976 (time 1789607403.96 total 40.04 last 47.87)
 - open/close 2527 (time 1789607413.98 total 50.06 last 55.00)
 - open/close 3061 (time 1789607423.98 total 60.06 last 53.37)
 - open/close 3505 (time 1789607433.99 total 70.07 last 44.37)
 - open/close 3916 (time 1789607444.02 total 80.10 last 40.97)
 - open/close 4338 (time 1789607454.02 total 90.10 last 42.20)
 - open/close 4720 (time 1789607464.03 total 100.11 last 38.15)
total: 5000 open/close in 108.07 seconds: 46.26 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789607477 ; total 0 ; last 0)
total: 5000 unlinks in 80 seconds: 62.500000 unlinks/second
fail_loc=0