== sanity test 60c: unlink file when mds full ============ 12:58:45 (1787849925)
create 5000 files
 - open/close 538 (time 1787849940.89 total 10.01 last 53.75)
 - open/close 1122 (time 1787849950.89 total 20.01 last 58.40)
 - open/close 1736 (time 1787849960.90 total 30.02 last 61.36)
 - open/close 2270 (time 1787849970.93 total 40.04 last 53.25)
 - open/close 2748 (time 1787849980.94 total 50.06 last 47.72)
 - open/close 3304 (time 1787849990.96 total 60.08 last 55.51)
 - open/close 3914 (time 1787850000.96 total 70.08 last 60.96)
 - open/close 4429 (time 1787850011.00 total 80.12 last 51.33)
total: 5000 open/close in 90.02 seconds: 55.55 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787850025 ; total 0 ; last 0)
total: 5000 unlinks in 62 seconds: 80.645164 unlinks/second
fail_loc=0