== sanity test 60c: unlink file when mds full ============ 18:11:08 (1788559868)
create 5000 files
 - open/close 478 (time 1788559882.70 total 10.01 last 47.75)
 - open/close 954 (time 1788559892.74 total 20.05 last 47.40)
 - open/close 1373 (time 1788559902.77 total 30.08 last 41.79)
 - open/close 1770 (time 1788559912.77 total 40.08 last 39.68)
 - open/close 2191 (time 1788559922.80 total 50.11 last 42.00)
 - open/close 2600 (time 1788559932.80 total 60.11 last 40.88)
 - open/close 3113 (time 1788559942.81 total 70.12 last 51.26)
 - open/close 3558 (time 1788559952.84 total 80.15 last 44.37)
 - open/close 4005 (time 1788559962.84 total 90.15 last 44.68)
 - open/close 4408 (time 1788559972.87 total 100.18 last 40.19)
 - open/close 4830 (time 1788559982.88 total 110.19 last 42.14)
total: 5000 open/close in 113.73 seconds: 43.96 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788559990 ; total 0 ; last 0)
total: 5000 unlinks in 85 seconds: 58.823528 unlinks/second
fail_loc=0