== sanity test 60c: unlink file when mds full ============ 00:26:54 (1788928014)
create 5000 files
 - open/close 537 (time 1788928029.30 total 10.01 last 53.67)
 - open/close 1034 (time 1788928039.30 total 20.01 last 49.70)
 - open/close 1600 (time 1788928049.30 total 30.01 last 56.57)
 - open/close 2229 (time 1788928059.31 total 40.02 last 62.83)
 - open/close 2755 (time 1788928069.32 total 50.03 last 52.58)
 - open/close 3157 (time 1788928079.32 total 60.03 last 40.20)
 - open/close 3440 (time 1788928089.33 total 70.04 last 28.27)
 - open/close 3908 (time 1788928099.35 total 80.06 last 46.69)
 - open/close 4381 (time 1788928109.36 total 90.07 last 47.24)
 - open/close 4896 (time 1788928119.39 total 100.10 last 51.39)
total: 5000 open/close in 102.11 seconds: 48.97 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788928126 ; total 0 ; last 0)
total: 5000 unlinks in 66 seconds: 75.757576 unlinks/second
fail_loc=0