== sanity test 60c: unlink file when mds full ============ 14:10:28 (1777572628)
create 5000 files
 - open/close 2140 (time 1777572639.55 total 10.01 last 213.81)
 - open/close 3641 (time 1777572649.55 total 20.01 last 150.05)
 - open/close 4896 (time 1777572659.55 total 30.02 last 125.46)
total: 5000 open/close in 30.59 seconds: 163.43 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1777572661 ; total 0 ; last 0)
total: 5000 unlinks in 22 seconds: 227.272720 unlinks/second
fail_loc=0