== sanity test 60c: unlink file when mds full ============ 07:52:20 (1789127540)
create 5000 files
 - open/close 511 (time 1789127553.73 total 10.01 last 51.05)
 - open/close 1022 (time 1789127563.73 total 20.01 last 51.09)
 - open/close 1498 (time 1789127573.73 total 30.01 last 47.59)
 - open/close 1986 (time 1789127583.76 total 40.04 last 48.69)
 - open/close 2450 (time 1789127593.77 total 50.05 last 46.35)
 - open/close 2842 (time 1789127603.80 total 60.07 last 39.09)
 - open/close 3270 (time 1789127613.81 total 70.09 last 42.75)
 - open/close 3773 (time 1789127623.81 total 80.09 last 50.26)
 - open/close 4259 (time 1789127633.82 total 90.10 last 48.59)
 - open/close 4737 (time 1789127643.83 total 100.11 last 47.73)
total: 5000 open/close in 105.48 seconds: 47.40 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789127653 ; total 0 ; last 0)
total: 5000 unlinks in 86 seconds: 58.139534 unlinks/second
fail_loc=0