== sanity test 60c: unlink file when mds full ============ 21:29:14 (1789781354)
create 5000 files
 - open/close 414 (time 1789781370.45 total 10.03 last 41.27)
 - open/close 881 (time 1789781380.47 total 20.05 last 46.62)
 - open/close 1354 (time 1789781390.50 total 30.08 last 47.17)
 - open/close 1865 (time 1789781400.52 total 40.09 last 51.01)
 - open/close 2345 (time 1789781410.53 total 50.10 last 47.95)
 - open/close 2816 (time 1789781420.53 total 60.11 last 47.08)
 - open/close 3272 (time 1789781430.54 total 70.12 last 45.56)
 - open/close 3723 (time 1789781440.58 total 80.16 last 44.92)
 - open/close 4174 (time 1789781450.61 total 90.19 last 44.96)
 - open/close 4612 (time 1789781460.63 total 100.20 last 43.73)
total: 5000 open/close in 108.74 seconds: 45.98 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1789781473 ; total 0 ; last 0)
total: 5000 unlinks in 74 seconds: 67.567566 unlinks/second
fail_loc=0