== sanity test 60c: unlink file when mds full ============ 22:47:20 (1788835640)
create 5000 files
 - open/close 349 (time 1788835655.96 total 10.03 last 34.78)
 - open/close 779 (time 1788835665.96 total 20.04 last 42.97)
 - open/close 1188 (time 1788835675.97 total 30.05 last 40.87)
 - open/close 1705 (time 1788835685.99 total 40.07 last 51.60)
 - open/close 2134 (time 1788835695.99 total 50.07 last 42.88)
 - open/close 2729 (time 1788835706.00 total 60.08 last 59.47)
 - open/close 3240 (time 1788835716.01 total 70.09 last 51.03)
 - open/close 3721 (time 1788835726.02 total 80.10 last 48.03)
 - open/close 4209 (time 1788835736.04 total 90.12 last 48.73)
 - open/close 4726 (time 1788835746.04 total 100.12 last 51.69)
total: 5000 open/close in 106.14 seconds: 47.11 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788835757 ; total 0 ; last 0)
total: 5000 unlinks in 70 seconds: 71.428574 unlinks/second
fail_loc=0