== sanity test 60c: unlink file when mds full ============ 14:22:55 (1777573375)
create 5000 files
 - open/close 1728 (time 1777573386.73 total 10.00 last 172.72)
 - open/close 3030 (time 1777573396.73 total 20.01 last 130.16)
 - open/close 4504 (time 1777573406.73 total 30.01 last 147.38)
total: 5000 open/close in 33.66 seconds: 148.54 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1777573412 ; total 0 ; last 0)
total: 5000 unlinks in 25 seconds: 200.000000 unlinks/second
fail_loc=0