== sanity test 60c: unlink file when mds full ============ 21:50:20 (1788918620)
create 5000 files
 - open/close 745 (time 1788918634.83 total 10.02 last 74.37)
 - open/close 1416 (time 1788918644.84 total 20.03 last 67.03)
 - open/close 2078 (time 1788918654.85 total 30.03 last 66.17)
 - open/close 2782 (time 1788918664.85 total 40.04 last 70.36)
 - open/close 3349 (time 1788918674.87 total 50.06 last 56.60)
 - open/close 3987 (time 1788918684.87 total 60.06 last 63.79)
 - open/close 4568 (time 1788918694.88 total 70.07 last 58.06)
total: 5000 open/close in 76.88 seconds: 65.04 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788918706 ; total 0 ; last 0)
total: 5000 unlinks in 57 seconds: 87.719299 unlinks/second
fail_loc=0