== sanity test 60c: unlink file when mds full ============ 06:38:21 (1788863901)
create 5000 files
 - open/close 481 (time 1788863915.71 total 10.01 last 48.05)
 - open/close 1032 (time 1788863925.73 total 20.03 last 55.00)
 - open/close 1513 (time 1788863935.75 total 30.05 last 48.01)
 - open/close 1976 (time 1788863945.77 total 40.07 last 46.21)
 - open/close 2408 (time 1788863955.78 total 50.08 last 43.13)
 - open/close 2888 (time 1788863965.80 total 60.11 last 47.90)
 - open/close 3391 (time 1788863975.81 total 70.11 last 50.29)
 - open/close 3942 (time 1788863985.82 total 80.13 last 55.00)
 - open/close 4537 (time 1788863995.83 total 90.13 last 59.48)
total: 5000 open/close in 98.71 seconds: 50.66 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788864008 ; total 0 ; last 0)
total: 5000 unlinks in 78 seconds: 64.102562 unlinks/second
fail_loc=0