== sanity test 60c: unlink file when mds full ============ 22:34:06 (1788748446)
create 5000 files
 - open/close 526 (time 1788748460.39 total 10.01 last 52.57)
 - open/close 984 (time 1788748470.41 total 20.02 last 45.73)
 - open/close 1536 (time 1788748480.42 total 30.03 last 55.14)
 - open/close 2136 (time 1788748490.43 total 40.04 last 59.97)
 - open/close 2674 (time 1788748500.43 total 50.04 last 53.77)
 - open/close 3180 (time 1788748510.43 total 60.04 last 50.60)
 - open/close 3671 (time 1788748520.45 total 70.06 last 49.00)
 - open/close 4140 (time 1788748530.45 total 80.06 last 46.90)
 - open/close 4664 (time 1788748540.47 total 90.08 last 52.31)
total: 5000 open/close in 97.86 seconds: 51.10 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788748552 ; total 0 ; last 0)
total: 5000 unlinks in 62 seconds: 80.645164 unlinks/second
fail_loc=0