== sanity test 60c: unlink file when mds full ============ 12:55:28 (1772906128)
create 5000 files
 - open/close 1665 (time 1772906139.89 total 10.00 last 166.48)
 - open/close 3007 (time 1772906149.89 total 20.01 last 134.08)
 - open/close 4629 (time 1772906159.89 total 30.01 last 162.19)
total: 5000 open/close in 32.50 seconds: 153.85 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1772906163 ; total 0 ; last 0)
total: 5000 unlinks in 19 seconds: 263.157898 unlinks/second
fail_loc=0