== sanity test 60c: unlink file when mds full ============ 05:50:35 (1789984235)
create 5000 files
 - open/close 1375 (time 1789984247.37 total 10.00 last 137.43)
 - open/close 2761 (time 1789984257.38 total 20.01 last 138.55)
 - open/close 4163 (time 1789984267.38 total 30.01 last 140.16)
total: 5000 open/close in 34.07 seconds: 146.75 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789984272 ; total 0 ; last 0)
total: 5000 unlinks in 19 seconds: 263.157898 unlinks/second
fail_loc=0