== sanity test 60c: unlink file when mds full ============ 18:21:51 (1787869311)
create 5000 files
 - open/close 596 (time 1787869325.42 total 10.01 last 59.55)
 - open/close 1255 (time 1787869335.44 total 20.02 last 65.81)
 - open/close 1923 (time 1787869345.44 total 30.03 last 66.78)
 - open/close 2488 (time 1787869355.44 total 40.03 last 56.50)
 - open/close 3006 (time 1787869365.45 total 50.04 last 51.75)
 - open/close 3544 (time 1787869375.46 total 60.05 last 53.74)
 - open/close 4095 (time 1787869385.48 total 70.07 last 54.98)
 - open/close 4583 (time 1787869395.49 total 80.08 last 48.75)
total: 5000 open/close in 88.77 seconds: 56.33 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787869409 ; total 0 ; last 0)
total: 5000 unlinks in 65 seconds: 76.923080 unlinks/second
fail_loc=0