== sanity test 60c: unlink file when mds full ============ 20:00:31 (1780963231)
create 5000 files
 - open/close 713 (time 1780963245.50 total 10.01 last 71.24)
 - open/close 1462 (time 1780963255.51 total 20.02 last 74.85)
 - open/close 2186 (time 1780963265.52 total 30.03 last 72.32)
 - open/close 2963 (time 1780963275.53 total 40.04 last 77.60)
 - open/close 3768 (time 1780963285.54 total 50.04 last 80.49)
 - open/close 4536 (time 1780963295.54 total 60.05 last 76.76)
total: 5000 open/close in 68.84 seconds: 72.64 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1780963312 ; total 0 ; last 0)
total: 5000 unlinks in 42 seconds: 119.047623 unlinks/second
fail_loc=0