== sanity test 60c: unlink file when mds full ============ 18:07:28 (1788559648)
create 5000 files
 - open/close 651 (time 1788559662.39 total 10.01 last 65.01)
 - open/close 1342 (time 1788559672.40 total 20.03 last 68.98)
 - open/close 1968 (time 1788559682.43 total 30.05 last 62.47)
 - open/close 2596 (time 1788559692.43 total 40.06 last 62.75)
 - open/close 3112 (time 1788559702.44 total 50.06 last 51.57)
 - open/close 3747 (time 1788559712.44 total 60.07 last 63.46)
 - open/close 4379 (time 1788559722.46 total 70.08 last 63.12)
 - open/close 4895 (time 1788559732.46 total 80.09 last 51.59)
total: 5000 open/close in 81.73 seconds: 61.17 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788559738 ; total 0 ; last 0)
total: 5000 unlinks in 65 seconds: 76.923080 unlinks/second
fail_loc=0