== sanity test 60c: unlink file when mds full ============ 20:42:11 (1788914531)
create 5000 files
 - open/close 501 (time 1788914547.25 total 10.01 last 50.05)
 - open/close 982 (time 1788914557.26 total 20.01 last 48.08)
 - open/close 1482 (time 1788914567.27 total 30.03 last 49.93)
 - open/close 2048 (time 1788914577.28 total 40.03 last 56.57)
 - open/close 2494 (time 1788914587.32 total 50.07 last 44.44)
 - open/close 2885 (time 1788914597.32 total 60.07 last 39.09)
 - open/close 3289 (time 1788914607.33 total 70.09 last 40.35)
 - open/close 3646 (time 1788914617.35 total 80.11 last 35.63)
 - open/close 4148 (time 1788914627.39 total 90.15 last 49.99)
 - open/close 4427 (time 1788914637.40 total 100.16 last 27.88)
 - open/close 4876 (time 1788914647.42 total 110.18 last 44.82)
total: 5000 open/close in 112.66 seconds: 44.38 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788914654 ; total 0 ; last 0)
total: 5000 unlinks in 73 seconds: 68.493149 unlinks/second
fail_loc=0