== sanity test 60c: unlink file when mds full ============ 20:31:04 (1778286664)
create 5000 files
 - open/close 462 (time 1778286677.88 total 10.01 last 46.17)
 - open/close 912 (time 1778286687.90 total 20.02 last 44.95)
 - open/close 1408 (time 1778286697.91 total 30.03 last 49.56)
 - open/close 1884 (time 1778286707.91 total 40.03 last 47.60)
 - open/close 2387 (time 1778286717.92 total 50.04 last 50.22)
 - open/close 2901 (time 1778286727.95 total 60.08 last 51.24)
 - open/close 3349 (time 1778286737.97 total 70.09 last 44.72)
 - open/close 3770 (time 1778286747.99 total 80.11 last 42.02)
 - open/close 4207 (time 1778286758.00 total 90.13 last 43.64)
 - open/close 4627 (time 1778286768.01 total 100.13 last 41.98)
total: 5000 open/close in 109.27 seconds: 45.76 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1778286781 ; total 0 ; last 0)
total: 5000 unlinks in 84 seconds: 59.523811 unlinks/second
fail_loc=0