== sanity test 60c: unlink file when mds full ============ 13:43:04 (1782927784)
create 5000 files
 - open/close 1555 (time 1782927796.63 total 10.01 last 155.30)
 - open/close 3293 (time 1782927806.63 total 20.01 last 173.79)
 - open/close 4524 (time 1782927816.64 total 30.02 last 123.04)
total: 5000 open/close in 34.50 seconds: 144.93 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1782927822 ; total 0 ; last 0)
total: 5000 unlinks in 25 seconds: 200.000000 unlinks/second
fail_loc=0