== sanity test 60c: unlink file when mds full ============ 02:30:29 (1788762629)
create 5000 files
 - open/close 619 (time 1788762643.78 total 10.01 last 61.87)
 - open/close 1106 (time 1788762653.79 total 20.02 last 48.63)
 - open/close 1569 (time 1788762663.80 total 30.03 last 46.25)
 - open/close 2008 (time 1788762673.83 total 40.06 last 43.77)
 - open/close 2453 (time 1788762683.84 total 50.07 last 44.45)
 - open/close 3048 (time 1788762693.85 total 60.07 last 59.49)
 - open/close 3691 (time 1788762703.86 total 70.08 last 64.24)
 - open/close 4346 (time 1788762713.86 total 80.09 last 65.47)
 - open/close 4830 (time 1788762723.88 total 90.11 last 48.30)
total: 5000 open/close in 93.34 seconds: 53.57 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788762732 ; total 0 ; last 0)
total: 5000 unlinks in 53 seconds: 94.339622 unlinks/second
fail_loc=0