== sanity test 60c: unlink file when mds full ============ 06:55:17 (1787741717)
create 5000 files
 - open/close 567 (time 1787741731.14 total 10.00 last 56.69)
 - open/close 1161 (time 1787741741.15 total 20.01 last 59.34)
 - open/close 1751 (time 1787741751.16 total 30.02 last 58.93)
 - open/close 2375 (time 1787741761.17 total 40.04 last 62.32)
 - open/close 3020 (time 1787741771.18 total 50.04 last 64.45)
 - open/close 3480 (time 1787741781.19 total 60.06 last 45.95)
 - open/close 3992 (time 1787741791.20 total 70.06 last 51.17)
 - open/close 4599 (time 1787741801.20 total 80.06 last 60.68)
total: 5000 open/close in 88.19 seconds: 56.69 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787741814 ; total 0 ; last 0)
total: 5000 unlinks in 71 seconds: 70.422539 unlinks/second
fail_loc=0