== sanity test 60c: unlink file when mds full ============ 19:56:47 (1788652607)
create 5000 files
 - open/close 516 (time 1788652621.37 total 10.01 last 51.54)
 - open/close 1084 (time 1788652631.37 total 20.01 last 56.80)
 - open/close 1545 (time 1788652641.38 total 30.02 last 46.09)
 - open/close 2078 (time 1788652651.42 total 40.05 last 53.09)
 - open/close 2607 (time 1788652661.43 total 50.07 last 52.83)
 - open/close 3027 (time 1788652671.44 total 60.08 last 41.95)
 - open/close 3556 (time 1788652681.45 total 70.09 last 52.86)
 - open/close 4053 (time 1788652691.46 total 80.10 last 49.63)
 - open/close 4544 (time 1788652701.47 total 90.11 last 49.09)
total: 5000 open/close in 98.93 seconds: 50.54 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788652714 ; total 0 ; last 0)
total: 5000 unlinks in 67 seconds: 74.626869 unlinks/second
fail_loc=0