== sanity test 60c: unlink file when mds full ============ 10:19:33 (1788358773)
create 5000 files
 - open/close 758 (time 1788358785.76 total 10.01 last 75.74)
 - open/close 1439 (time 1788358795.78 total 20.03 last 67.94)
 - open/close 2204 (time 1788358805.79 total 30.04 last 76.46)
 - open/close 2917 (time 1788358815.80 total 40.05 last 71.18)
 - open/close 3629 (time 1788358825.81 total 50.06 last 71.13)
 - open/close 4385 (time 1788358835.82 total 60.08 last 75.51)
total: 5000 open/close in 67.98 seconds: 73.55 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788358846 ; total 0 ; last 0)
total: 5000 unlinks in 44 seconds: 113.636360 unlinks/second
fail_loc=0