== sanity test 60c: unlink file when mds full ============ 09:01:19 (1788526879)
create 5000 files
 - open/close 505 (time 1788526894.23 total 10.03 last 50.35)
 - open/close 972 (time 1788526904.24 total 20.04 last 46.65)
 - open/close 1440 (time 1788526914.25 total 30.05 last 46.74)
 - open/close 1929 (time 1788526924.27 total 40.07 last 48.81)
 - open/close 2439 (time 1788526934.27 total 50.08 last 50.97)
 - open/close 2877 (time 1788526944.29 total 60.09 last 43.71)
 - open/close 3342 (time 1788526954.31 total 70.11 last 46.42)
 - open/close 3825 (time 1788526964.33 total 80.13 last 48.22)
 - open/close 4318 (time 1788526974.33 total 90.13 last 49.27)
 - open/close 4800 (time 1788526984.33 total 100.14 last 48.19)
total: 5000 open/close in 104.14 seconds: 48.01 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1788526992 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0