== sanity test 60c: unlink file when mds full ============ 20:54:50 (1788483290)
create 5000 files
 - open/close 620 (time 1788483304.60 total 10.01 last 61.95)
 - open/close 1171 (time 1788483314.60 total 20.02 last 55.06)
 - open/close 1691 (time 1788483324.61 total 30.02 last 51.96)
 - open/close 2216 (time 1788483334.62 total 40.03 last 52.47)
 - open/close 2674 (time 1788483344.62 total 50.03 last 45.78)
 - open/close 3144 (time 1788483354.63 total 60.04 last 46.94)
 - open/close 3629 (time 1788483364.64 total 70.05 last 48.47)
 - open/close 4124 (time 1788483374.65 total 80.06 last 49.43)
 - open/close 4634 (time 1788483384.66 total 90.07 last 50.95)
total: 5000 open/close in 97.22 seconds: 51.43 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788483396 ; total 0 ; last 0)
total: 5000 unlinks in 78 seconds: 64.102562 unlinks/second
fail_loc=0