== sanity test 60c: unlink file when mds full ============ 17:20:03 (1781817603)
create 5000 files
 - open/close 782 (time 1781817616.03 total 10.01 last 78.15)
 - open/close 1444 (time 1781817626.04 total 20.01 last 66.17)
 - open/close 2093 (time 1781817636.05 total 30.02 last 64.83)
 - open/close 2732 (time 1781817646.05 total 40.03 last 63.88)
 - open/close 3362 (time 1781817656.06 total 50.04 last 62.93)
 - open/close 4018 (time 1781817666.06 total 60.04 last 65.60)
 - open/close 4623 (time 1781817676.08 total 70.05 last 60.42)
total: 5000 open/close in 76.65 seconds: 65.23 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781817685 ; total 0 ; last 0)
total: 5000 unlinks in 51 seconds: 98.039215 unlinks/second
fail_loc=0