== sanity test 60c: unlink file when mds full ============ 05:28:29 (1789378109)
create 5000 files
 - open/close 546 (time 1789378124.03 total 10.02 last 54.51)
 - open/close 1161 (time 1789378134.04 total 20.02 last 61.45)
 - open/close 1653 (time 1789378144.05 total 30.03 last 49.15)
 - open/close 2151 (time 1789378154.06 total 40.04 last 49.77)
 - open/close 2797 (time 1789378164.08 total 50.07 last 64.43)
 - open/close 3350 (time 1789378174.10 total 60.08 last 55.23)
 - open/close 3791 (time 1789378184.17 total 70.16 last 43.76)
 - open/close 4265 (time 1789378194.20 total 80.18 last 47.28)
 - open/close 4665 (time 1789378204.22 total 90.20 last 39.93)
total: 5000 open/close in 99.07 seconds: 50.47 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789378218 ; total 0 ; last 0)
total: 5000 unlinks in 75 seconds: 66.666664 unlinks/second
fail_loc=0