== sanity test 60c: unlink file when mds full ============ 21:49:05 (1789264145)
create 5000 files
 - open/close 742 (time 1789264157.41 total 10.00 last 74.18)
 - open/close 1472 (time 1789264167.41 total 20.01 last 72.93)
 - open/close 2294 (time 1789264177.42 total 30.01 last 82.20)
 - open/close 3005 (time 1789264187.42 total 40.01 last 71.09)
 - open/close 3704 (time 1789264197.43 total 50.03 last 69.80)
 - open/close 4378 (time 1789264207.44 total 60.04 last 67.34)
total: 5000 open/close in 69.35 seconds: 72.10 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789264218 ; total 0 ; last 0)
total: 5000 unlinks in 44 seconds: 113.636360 unlinks/second
fail_loc=0