== sanity test 60c: unlink file when mds full ============ 20:44:39 (1777423479)
create 5000 files
 - open/close 765 (time 1777423492.31 total 10.00 last 76.49)
 - open/close 1494 (time 1777423502.33 total 20.02 last 72.76)
 - open/close 2091 (time 1777423512.34 total 30.03 last 59.63)
 - open/close 2725 (time 1777423522.35 total 40.04 last 63.35)
 - open/close 3330 (time 1777423532.36 total 50.05 last 60.44)
 - open/close 3922 (time 1777423542.37 total 60.06 last 59.16)
 - open/close 4460 (time 1777423552.37 total 70.06 last 53.78)
 - open/close 4907 (time 1777423562.38 total 80.07 last 44.67)
total: 5000 open/close in 81.67 seconds: 61.22 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1777423567 ; total 0 ; last 0)
total: 5000 unlinks in 55 seconds: 90.909088 unlinks/second
fail_loc=0