== sanity test 60c: unlink file when mds full ============ 04:24:10 (1789287850)
create 5000 files
 - open/close 443 (time 1789287865.00 total 10.02 last 44.21)
 - open/close 951 (time 1789287875.02 total 20.04 last 50.69)
 - open/close 1489 (time 1789287885.02 total 30.04 last 53.79)
 - open/close 2028 (time 1789287895.02 total 40.05 last 53.90)
 - open/close 2506 (time 1789287905.04 total 50.06 last 47.72)
 - open/close 3039 (time 1789287915.04 total 60.06 last 53.28)
 - open/close 3559 (time 1789287925.04 total 70.07 last 52.00)
 - open/close 4078 (time 1789287935.04 total 80.07 last 51.90)
 - open/close 4593 (time 1789287945.06 total 90.08 last 51.43)
total: 5000 open/close in 99.06 seconds: 50.48 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789287960 ; total 0 ; last 0)
total: 5000 unlinks in 79 seconds: 63.291138 unlinks/second
fail_loc=0