== sanity test 60c: unlink file when mds full ============ 14:32:55 (1788201175)
create 5000 files
 - open/close 480 (time 1788201190.04 total 10.01 last 47.95)
 - open/close 985 (time 1788201200.05 total 20.01 last 50.47)
 - open/close 1575 (time 1788201210.05 total 30.02 last 58.97)
 - open/close 2090 (time 1788201220.05 total 40.02 last 51.49)
 - open/close 2614 (time 1788201230.06 total 50.03 last 52.38)
 - open/close 3145 (time 1788201240.07 total 60.03 last 53.05)
 - open/close 3663 (time 1788201250.07 total 70.04 last 51.76)
 - open/close 4178 (time 1788201260.08 total 80.05 last 51.47)
 - open/close 4664 (time 1788201270.09 total 90.05 last 48.58)
total: 5000 open/close in 97.69 seconds: 51.18 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788201282 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0