== sanity test 60c: unlink file when mds full ============ 09:58:07 (1781272687)
create 5000 files
 - open/close 481 (time 1781272701.69 total 10.01 last 48.07)
 - open/close 993 (time 1781272711.69 total 20.01 last 51.20)
 - open/close 1503 (time 1781272721.70 total 30.02 last 50.95)
 - open/close 2002 (time 1781272731.72 total 40.03 last 49.83)
 - open/close 2520 (time 1781272741.72 total 50.04 last 51.76)
 - open/close 3024 (time 1781272751.74 total 60.05 last 50.34)
 - open/close 3506 (time 1781272761.74 total 70.05 last 48.18)
 - open/close 3983 (time 1781272771.76 total 80.08 last 47.58)
 - open/close 4522 (time 1781272781.78 total 90.10 last 53.81)
total: 5000 open/close in 99.43 seconds: 50.29 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1781272796 ; total 0 ; last 0)
total: 5000 unlinks in 80 seconds: 62.500000 unlinks/second
fail_loc=0