== sanity test 60c: unlink file when mds full ============ 20:59:40 (1782608380)
create 5000 files
 - open/close 567 (time 1782608395.12 total 10.01 last 56.63)
 - open/close 1119 (time 1782608405.12 total 20.01 last 55.19)
 - open/close 1689 (time 1782608415.14 total 30.04 last 56.86)
 - open/close 2165 (time 1782608425.15 total 40.05 last 47.56)
 - open/close 2685 (time 1782608435.17 total 50.07 last 51.90)
 - open/close 3206 (time 1782608445.20 total 60.10 last 51.94)
 - open/close 3747 (time 1782608455.21 total 70.10 last 54.08)
 - open/close 4210 (time 1782608465.21 total 80.11 last 46.26)
 - open/close 4714 (time 1782608475.23 total 90.12 last 50.33)
total: 5000 open/close in 96.09 seconds: 52.04 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1782608486 ; total 0 ; last 0)
total: 5000 unlinks in 67 seconds: 74.626869 unlinks/second
fail_loc=0