== sanity test 60c: unlink file when mds full ============ 13:25:24 (1780334724)
create 5000 files
 - open/close 439 (time 1780334739.72 total 10.01 last 43.86)
 - open/close 865 (time 1780334749.73 total 20.02 last 42.57)
 - open/close 1299 (time 1780334759.76 total 30.05 last 43.27)
 - open/close 1742 (time 1780334769.77 total 40.06 last 44.24)
 - open/close 2111 (time 1780334779.79 total 50.08 last 36.84)
 - open/close 2559 (time 1780334789.80 total 60.09 last 44.75)
 - open/close 3026 (time 1780334799.83 total 70.12 last 46.55)
 - open/close 3474 (time 1780334809.86 total 80.14 last 44.71)
 - open/close 3884 (time 1780334819.87 total 90.15 last 40.96)
 - open/close 4388 (time 1780334829.89 total 100.18 last 50.28)
 - open/close 4777 (time 1780334839.91 total 110.20 last 38.81)
total: 5000 open/close in 115.05 seconds: 43.46 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1780334849 ; total 0 ; last 0)
total: 5000 unlinks in 88 seconds: 56.818180 unlinks/second
fail_loc=0