== sanity test 60c: unlink file when mds full ============ 08:18:14 (1788178694)
create 5000 files
 - open/close 534 (time 1788178708.48 total 10.00 last 53.39)
 - open/close 1173 (time 1788178718.50 total 20.02 last 63.76)
 - open/close 1770 (time 1788178728.51 total 30.03 last 59.64)
 - open/close 2445 (time 1788178738.52 total 40.04 last 67.48)
 - open/close 3107 (time 1788178748.52 total 50.04 last 66.17)
 - open/close 3747 (time 1788178758.53 total 60.05 last 63.92)
 - open/close 4362 (time 1788178768.54 total 70.06 last 61.48)
 - open/close 4959 (time 1788178778.55 total 80.07 last 59.60)
total: 5000 open/close in 80.64 seconds: 62.00 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788178783 ; total 0 ; last 0)
total: 5000 unlinks in 57 seconds: 87.719299 unlinks/second
fail_loc=0