== sanity test 60c: unlink file when mds full ============ 10:47:25 (1776178045)
create 5000 files
 - open/close 553 (time 1776178059.93 total 10.02 last 55.18)
 - open/close 1041 (time 1776178069.94 total 20.03 last 48.78)
 - open/close 1532 (time 1776178079.94 total 30.03 last 49.09)
 - open/close 2063 (time 1776178089.94 total 40.03 last 53.08)
 - open/close 2640 (time 1776178099.95 total 50.03 last 57.69)
 - open/close 3227 (time 1776178109.96 total 60.05 last 58.64)
 - open/close 3862 (time 1776178119.96 total 70.05 last 63.46)
 - open/close 4499 (time 1776178129.97 total 80.06 last 63.64)
total: 5000 open/close in 88.51 seconds: 56.49 ops/second
fail_loc=0x80000137
 - unlinked 0 (time 1776178142 ; total 0 ; last 0)
total: 5000 unlinks in 63 seconds: 79.365082 unlinks/second
fail_loc=0