== sanity test 60c: unlink file when mds full ============ 14:23:46 (1787855026)
create 5000 files
 - open/close 564 (time 1787855040.33 total 10.02 last 56.27)
 - open/close 1144 (time 1787855050.34 total 20.03 last 57.98)
 - open/close 1685 (time 1787855060.35 total 30.04 last 54.05)
 - open/close 2212 (time 1787855070.35 total 40.04 last 52.66)
 - open/close 2697 (time 1787855080.38 total 50.07 last 48.36)
 - open/close 3181 (time 1787855090.39 total 60.08 last 48.36)
 - open/close 3688 (time 1787855100.40 total 70.09 last 50.66)
 - open/close 4208 (time 1787855110.42 total 80.11 last 51.90)
 - open/close 4706 (time 1787855120.44 total 90.13 last 49.69)
total: 5000 open/close in 95.72 seconds: 52.23 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1787855130 ; total 0 ; last 0)
total: 5000 unlinks in 63 seconds: 79.365082 unlinks/second
fail_loc=0