== sanity test 60c: unlink file when mds full ============ 05:07:26 (1789117646)
create 5000 files
 - open/close 618 (time 1789117661.76 total 10.02 last 61.65)
 - open/close 1110 (time 1789117671.77 total 20.03 last 49.16)
 - open/close 1659 (time 1789117681.78 total 30.04 last 54.83)
 - open/close 2282 (time 1789117691.79 total 40.05 last 62.27)
 - open/close 2899 (time 1789117701.79 total 50.05 last 61.69)
 - open/close 3530 (time 1789117711.80 total 60.06 last 63.06)
 - open/close 4182 (time 1789117721.80 total 70.06 last 65.20)
 - open/close 4833 (time 1789117731.81 total 80.07 last 65.04)
total: 5000 open/close in 82.73 seconds: 60.44 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789117738 ; total 0 ; last 0)
total: 5000 unlinks in 56 seconds: 89.285713 unlinks/second
fail_loc=0