== sanity test 60c: unlink file when mds full ============ 17:19:24 (1781817564)
create 5000 files
 - open/close 746 (time 1781817577.21 total 10.01 last 74.53)
 - open/close 1453 (time 1781817587.23 total 20.03 last 70.56)
 - open/close 2124 (time 1781817597.24 total 30.04 last 67.04)
 - open/close 2654 (time 1781817607.26 total 40.06 last 52.89)
 - open/close 3386 (time 1781817617.28 total 50.07 last 73.09)
 - open/close 4021 (time 1781817627.28 total 60.08 last 63.48)
 - open/close 4687 (time 1781817637.29 total 70.09 last 66.52)
total: 5000 open/close in 74.84 seconds: 66.81 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781817644 ; total 0 ; last 0)
total: 5000 unlinks in 52 seconds: 96.153847 unlinks/second
fail_loc=0